Search Results: "multiply fractions"

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05:42 Popular
Understanding Division Of Fractions | Fractions | Pre-Algebra | Khan Academy

1,214 views / 0 likes - added 8 years ago

Using a number line, we'll explain the rule of "invert and multiply" when dividing two fractions. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/pre-algebra/fractions-pre-alg/div-fractions-fractions-pre-alg/e/
09:50 Popular
Adding And Subtracting Fractions | Fractions | Pre-Algebra | Khan Academy

2,112 views / 1 likes - added 8 years ago

How to add and subtract fractions. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/pre-algebra/fractions-pre-alg/fractions-unlike-denom-pre-alg/e/adding_fractions?utm_source=YT&utm_medium=Desc&utm_campaign=PreA
05:51 Popular
Equivalent Fractions | Fractions | Pre-Algebra | Khan Academy

2,115 views / 0 likes - added 8 years ago

Introduces the concept of equivalent fractions Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/pre-algebra/fractions-pre-alg/equivalent-fractions-pre-alg/e/equivalent_fractions?utm_source=YT&utm_medium=Desc&utm
04:24 Popular
Example Of Subtracting Fractions With Unlike Denominators | Fractions | Pre-Algebra | Khan Academy

1,638 views / 0 likes - added 8 years ago

If you conquered adding fractions with different denominators, then subtracting fractions will be a snap. Don't worry...we'll take it slow and explain every step. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math
1:11:53 Popular
Fractions, Mixed Numbers, Decimals, & Percents - Review

874 views / 2 likes - added 3 years ago

This video tutorial shows you how to add, subtract, multiply, and divide fractions. It shows you how to convert between improper fractions, mixed numbers, decimals and even percents. It contains tons of examples and practice problems for you to learn from
04:33 Popular
Multiplying Negative And Positive Fractions | Fractions | Pre-Algebra | Khan Academy

876 views / 0 likes - added 8 years ago

See examples of multiplying and dividing fractions with negative numbers. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/pre-algebra/fractions-pre-alg/multiplying-fractions-pre-alg/e/multiplying_fractions?utm_
00:57 Popular
How Do You Multiply Numbers in Brackets?

1,266 views / 0 likes - added 5 years ago

How Do You Multiply Numbers in Brackets?. Part of the series: Math Help With Multiplying. Multiplying numbers in brackets requires a very specific procedure. Multiply numbers in brackets with help from a mathematics educator in this free video clip. Read
03:53 Popular
Plotting Basic Fractions On The Number Line | Fractions | Pre-Algebra | Khan Academy

1,367 views / 0 likes - added 8 years ago

Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/pre-algebra/fractions-pre-alg/understanding-fractions-pre-alg/e/fractions_on_the_number_line_1?utm_source=YT&utm_medium=Desc&utm_campaign=PreAlgebra Watch the nex
03:45 Popular
Visualizing Equivalent Fractions | Fractions | Pre-Algebra | Khan Academy

1,092 views / 0 likes - added 8 years ago

To understand equivalent fractions it helps to "see" the fractions using something like a grid with shaded and unshaded sections representing the fraction. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/pre-al
09:15 Popular
Mixed Numbers And Improper Fractions | Fractions | Pre-Algebra | Khan Academy

1,781 views / 2 likes - added 8 years ago

Converting mixed numbers to improper fractions and improper fractions to mixed numbers Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/pre-algebra/fractions-pre-alg/mixed-numbers-pre-alg/e/converting_mixed_numb
01:14 Popular
How to Multiply to Get the Area of a Parallelogram

1,531 views / 0 likes - added 5 years ago

How to Multiply to Get the Area of a Parallelogram. Part of the series: Perimeter, Area and Decimals. Multiplication is one way you can find the area of a parallelogram pretty easily. Multiply to get the area of a parallelogram with help from a longtime m
03:08 Popular
Multiplying Unit Fractions And Whole Numbers | Fractions | Pre-Algebra | Khan Academy

1,662 views / 1 likes - added 8 years ago

Don't let multiplying whole numbers and fractions get you down. We got this. This explanation will help you become a pro. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/pre-algebra/fractions-pre-alg/multiplyin
02:35 Popular
Dividing Whole Numbers And Fractions: Studying | Fractions | Pre-Algebra | Khan Academy

2,088 views / 0 likes - added 8 years ago

Solve a word problem by dividing a fraction by a whole number. The example used in this video is 1/5 ÷ 4. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/pre-algebra/fractions-pre-alg/dividing-fractions-pre-alg
01:48 Popular
How to Multiply Negative Mixed Numerals

1,301 views / 0 likes - added 5 years ago

How to Multiply Negative Mixed Numerals. Part of the series: Math Help With Multiplying. Multiplying negative mixed numerals quires you to keep a few very important things in mind. Find out how to multiply negative mixed numerals with help from a mathemat
02:32 Popular
Dividing Whole Numbers And Fractions: Potpourri | Fractions | Pre-Algebra | Khan Academy

1,765 views / 0 likes - added 8 years ago

Solve a word problem by dividing a whole number by a fraction. The example used in this video is 4 ÷ 1/5. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/pre-algebra/fractions-pre-alg/dividing-fractions-pre-alg
02:32 Popular
Comparing Fractions Visually With Pies | Fractions | 4th Grade | Khan Academy

1,040 views / 0 likes - added 8 years ago

Comparing fractions visually with pies Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/cc-fourth-grade-math/cc-4th-fractions-topic/cc-4th-comparing-fractions-visually/e/visually-comparing-fractions?utm_source=Y
02:55 Popular
Comparing Fractions On A Number Line | Fractions | 4th Grade | Khan Academy

1,444 views / 0 likes - added 8 years ago

Comparing fractions on a number line Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/cc-fourth-grade-math/cc-4th-fractions-topic/cc-4th-comparing-fractions-visually/e/visually-comparing-fractions?utm_source=YT&
04:58 Popular
Comparing Fractions Of Different Wholes | Fractions | 3th Grade | Khan Academy

1,463 views / 0 likes - added 8 years ago

Comparing fractions of different wholes Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/cc-third-grade-math/cc-3rd-fractions-topic/cc-3rd-different-wholes/e/naming-the-whole?utm_source=YT&utm_medium=Desc&utm_ca
02:35 Popular
Comparing Fractions Visually With A Bar | Fractions | 4th Grade | Khan Academy

1,103 views / 0 likes - added 8 years ago

Learn how to compare fractions with unlike denominators by drawing bars Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/cc-fourth-grade-math/cc-4th-fractions-topic/cc-4th-comparing-fractions-visually/e/visually
02:48 Popular
Fractions 4: Our First Two Beliefs about Fractions

990 views / 0 likes - added 3 years ago

This is the fourth in a series of videos on "FRACTIONS For All Those Who Never Really Got Them and Want to Get Them!"
02:27
Fractions 9: Comparing Fractions

438 views / 0 likes - added 3 years ago

This is the ninth in a series of videos on "FRACTIONS For All Those Who Never Really Got Them and Want to Get Them!"
01:53 Popular
How to Divide Fractions

876 views / 0 likes - added 5 years ago

Watch more Basic Math Skills videos: http://www.howcast.com/videos/262765-How-to-Divide-Fractions Math can be scary, but don't give up. Follow these simple steps, and soon you'll be dividing fractions like a pro. Step 1: Write the problem Write out the fi
06:06 Popular
Equivalent Fractions And Different Wholes | Fractions | 4th Grade | Khan Academy

807 views / 0 likes - added 8 years ago

Learn how two fractions are equivalent only if they refer to the same whole. For example, 1/2 of a small circle is not the same as 1/2 of a big circle. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/cc-fourth-
01:43
How to Multiply With Parentheses

429 views / 0 likes - added 5 years ago

How to Multiply With Parentheses. Part of the series: Math Help With Multiplying. Multiplying with parenthesis requires you to do things in a very specific order. Find out about multiplying with parenthesis with help from a mathematics educator in this fr
02:08 Popular
Tutorial for Adding & Subtracting Fractions

2,010 views / 0 likes - added 5 years ago

Tutorial for Adding & Subtracting Fractions. Part of the series: Adding and Subtracting Fractions. Adding and subtracting fractions is a lot like riding a bike - once you know how, you never forget. Get a tutorial for adding and subtracting fractions with
04:25
Multiply and Simplify a Radical Expression 1

451 views / 0 likes - added 9 years ago

u16_l2_t1_we1 Multiply and Simply a Radical Expression More free lessons at: http://www.khanacademy.org/video?v=GEeKOeGHddY Content provided by TheNROCproject.org - (c) Monterey Institute for Technology and Education
03:07
Multiply and Simplify a Radical Expression 2

517 views / 0 likes - added 9 years ago

u16_l2_t1_we2 Multiply and Simply a Radical Expression More free lessons at: http://www.khanacademy.org/video?v=sBvRJUwXJPo Content provided by TheNROCproject.org - (c) Monterey Institute for Technology and Education
03:00
Multiply Numbers By Drawing Lines

620 views / 0 likes - added 6 years ago

Gow to multiply numbers by drawing lines. Get the Multiply By Lines Book! https://www.amazon.com/gp/product/1500866148/ If you like my videos, you can support me at Patreon: http://www.patreon.com/mindyourdecisions Connect on social media. I update each s
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01:46 Popular
Easy Way of Learning to Subtract Fractions With Whole Numbers

1,387 views / 0 likes - added 5 years ago

Easy Way of Learning to Subtract Fractions With Whole Numbers. Part of the series: Simple Math. When it comes to subtracting with fractions, you're going to want to keep a few very important things in mind. Find out an easy way of learning subtracting wit
02:15 Popular
How to Add Square Roots to Numerator Fractions

999 views / 1 likes - added 5 years ago

How to Add Square Roots to Numerator Fractions. Part of the series: Math Problems. Adding square root numerator fractions requires you to keep the terms in the problem separate. Add square root numerator fractions with help from a mathematics educator in
02:04 Popular
The 2 Times Table Song (Multiply by 2) | Silly School Songs

1,230 views / 0 likes - added 3 years ago

Learn how to multiply by 2 with this upbeat and catchy song! For more music and information, visit http://sillyschoolsongs.com.FREE Practice and Speed Drill for the two times table!! http://sillyschoolsongs.com/multiply-by-two-free-speed-drill-and-practic
02:14 $Subtracting fractions (ex 1)$
Subtracting fractions (ex 1)

611 views / 0 likes - added 9 years ago

Subtracting fractions (ex 1)
05:07
Determining Rates With Fractions

666 views / 0 likes - added 8 years ago

Determining rates with fractions
04:16 Popular
Comparing Fractions With Different Denominators

812 views / 0 likes - added 9 years ago

Examples comparing fractions with different denominators.
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07:20
Fractions 3: Going Backwards

293 views / 0 likes - added 3 years ago

This is the third in a series of videos on "FRACTIONS For All Those Who Never Really Got Them and Want to Get Them!"
03:36
Fractions 8: The Fifth Belief

308 views / 0 likes - added 3 years ago

This is the eighth in a series of videos on "FRACTIONS For All Those Who Never Really Got Them and Want to Get Them!"
02:44
Algebraic Expression Adding Fractions

566 views / 0 likes - added 9 years ago

Algebraic expression adding fractions
07:51 Popular
Two Step Equations With Decimals And Fractions

797 views / 0 likes - added 8 years ago

Two step equations with decimals and fractions
05:01 Popular
Subtracting Fractions With Unlike Denominators

778 views / 0 likes - added 8 years ago

Subtracting fractions with unlike denominators
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07:24
Adding Fractions With Unlike Denominators

597 views / 0 likes - added 8 years ago

Adding fractions with unlike denominators
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02:30
One-Step Equation Involving Fractions

561 views / 0 likes - added 9 years ago

u10_l1_t1_we_int One-Step Equation Involving Fractions
01:43
Fractions 6: OPTIONAL Getting Quirky

305 views / 0 likes - added 3 years ago

This is the sixth in a series of videos on "FRACTIONS For All Those Who Never Really Got Them and Want to Get Them!"
09:44
Fractions 1: The Story of the Early Grades

298 views / 0 likes - added 3 years ago

This is the first in a series of videos on "FRACTIONS For All Those Who Never Really Got Them and Want to Get Them!"
04:41
Fractions 2: The Pies-per-Student Model

315 views / 0 likes - added 3 years ago

This is the second in a series of videos on "FRACTIONS For All Those Who Never Really Got Them and Want to Get Them!"
03:29
Fractions 5: Changing the Amount of Pie

289 views / 0 likes - added 3 years ago

This is the fifth in a series of videos on "FRACTIONS For All Those Who Never Really Got Them and Want to Get Them!"
02:23 Popular
Tricks to Learn When Multiplying and Dividing Fractions With Mixed Numbers

1,752 views / 0 likes - added 5 years ago

Tricks to Learn When Multiplying and Dividing Fractions With Mixed Numbers. Part of the series: Math Help With Multiplying. When it comes to learning multiplying and dividing, a few tricks can make things easier. Learn about tricks to getting the hang of
01:31 $Subtracting fractions with common denominators (ex 1)$
Subtracting fractions with common denominators (ex 1)

529 views / 0 likes - added 9 years ago

Subtracting fractions with common denominators (ex 1)
02:13
Multiplying Fractions Word Problems (ex 1)

681 views / 0 likes - added 9 years ago

Multiplying Fractions Word Problems (ex 1)
00:58
Fractions on the number line 1 (ex 2)

595 views / 0 likes - added 9 years ago

Fractions on the number line 1 (ex 2)
01:57
Fractions on the number line 2 (ex 1)

603 views / 0 likes - added 9 years ago

Fractions on the number line 2 (ex 1)
01:58
Fractions on the number line 3 (ex 2)

563 views / 0 likes - added 9 years ago

Fractions on the number line 3 (ex 2)
01:42
Fractions on the number line 3 (ex 1)

551 views / 0 likes - added 9 years ago

Fractions on the number line 3 (ex 1)
03:46
Visually Subtracting Fractions With Unlike Denominators

531 views / 0 likes - added 8 years ago

Visually subtracting fractions with unlike denominators
05:40
Visually Adding Fractions With Unlike Denominators

614 views / 0 likes - added 8 years ago

Visually adding fractions with unlike denominators
01:51
Multiplying Fractions By Whole Numbers On The Number Line

667 views / 0 likes - added 8 years ago

Multiplying fractions by whole numbers on the number line
06:37
Visually Understanding Multiplying Fractions And Whole Numbers

669 views / 0 likes - added 8 years ago

Visually understanding multiplying fractions and whole numbers
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06:44
Fractions 7: The Key Fraction Belief

313 views / 0 likes - added 3 years ago

This is the seventh in a series of videos on "FRACTIONS For All Those Who Never Really Got Them and Want to Get Them!"
02:33 $Adding fractions (ex 1)$
Adding fractions (ex 1)

645 views / 0 likes - added 9 years ago

Adding fractions (ex 1) More free lessons at: http://www.khanacademy.org/video?v=TuId1spuyoc
02:07 Popular $Converting mixed numbers and improper fractions (ex 2)$
Converting mixed numbers and improper fractions (ex 2)

714 views / 0 likes - added 9 years ago

Converting mixed numbers and improper fractions (ex 2)
02:06 $Converting mixed numbers and improper fractions (ex 1)$
Converting mixed numbers and improper fractions (ex 1)

696 views / 0 likes - added 9 years ago

Converting mixed numbers and improper fractions (ex 1)
05:23 Popular
Adding And Subtracting Multiple Fractions With Unlike Denominators

973 views / 0 likes - added 8 years ago

Adding and subtracting multiple fractions with unlike denominators
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04:51
Equivalent Fractions Example

692 views / 0 likes - added 9 years ago

U02_L1_T4_we1 Equivalent Fractions More free lessons at: http://www.khanacademy.org/video?v=0JW9P_T4P_Y Content provided by TheNROCproject.org - (c) Monterey Institute for Technology and Education
02:30 Popular
Comparing Fractions

786 views / 0 likes - added 9 years ago

U02_L1_T5_we1 Comparing Fractions More free lessons at: http://www.khanacademy.org/video?v=Io9i1JkKgN4 Content provided by TheNROCproject.org - (c) Monterey Institute for Technology and Education
02:26
Multiplying Fractions

660 views / 0 likes - added 9 years ago

U02_L2_T1_we1 Multiplying Fractions More free lessons at: http://www.khanacademy.org/video?v=CTKMK1ZGLuk Content provided by TheNROCproject.org - (c) Monterey Institute for Technology and Education
03:36
Dividing Fractions Example

504 views / 0 likes - added 9 years ago

U02_L2_T3_we2 Dividing Fractions More free lessons at: http://www.khanacademy.org/video?v=tnkPY4UqJ44 Content provided by TheNROCproject.org - (c) Monterey Institute for Technology and Education
02:26
Subtracting Fractions

571 views / 0 likes - added 9 years ago

U02_L3_T2_we1 Subtracting Fractions More free lessons at: http://www.khanacademy.org/video?v=UbUdyE1_b9g Content provided by TheNROCproject.org - (c) Monterey Institute for Technology and Education
02:42
Decimals and Fractions

521 views / 0 likes - added 9 years ago

U03_L1_T1_we3 Decimals and Fractions More free lessons at: http://www.khanacademy.org/video?v=NzIoHQfStoM Content provided by TheNROCproject.org - (c) Monterey Institute for Technology and Education
07:08
Comparing Fractions 2

547 views / 0 likes - added 9 years ago

u2_l1_t5_we2 Comparing Fractions More free lessons at: http://www.khanacademy.org/video?v=2dbasvm3iG0 Content provided by TheNROCproject.org - (c) Monterey Institute for Technology and Education
01:41
Proper and Improper Fractions

532 views / 0 likes - added 9 years ago

u2_l1_t2_we1 Proper and Improper Fractions More free lessons at: http://www.khanacademy.org/video?v=2h8XiqSnzaU Content provided by TheNROCproject.org - (c) Monterey Institute for Technology and Education
05:42
Fractions in lowest terms

441 views / 0 likes - added 9 years ago

U02_L1_T4_we2 Fractions in lowest terms More free lessons at: http://www.khanacademy.org/video?v=WPimvspI0_c Content provided by TheNROCproject.org - (c) Monterey Institute for Technology and Education
03:18
Adding Fractions with Like Denominators

646 views / 0 likes - added 9 years ago

U02_L3_T1_we1 Adding Fractions with Like Denominators More free lessons at: http://www.khanacademy.org/video?v=EJjnEau6aeI Content provided by TheNROCproject.org - (c) Monterey Institute for Technology and Education
02:17
Converting Fractions to Decimals Example

687 views / 1 likes - added 9 years ago

u03_l1_t1_we4 Converting Fractions to Decimals More free lessons at: http://www.khanacademy.org/video?v=Y1V5mZaMfTk Content provided by TheNROCproject.org - (c) Monterey Institute for Technology and Education
05:48
Unit Conversion with Fractions

422 views / 0 likes - added 9 years ago

u6_l1_t1_we1 Unit Conversion with Fractions More free lessons at: http://www.khanacademy.org/video?v=jFSenp9ueaI Content provided by TheNROCproject.org - (c) Monterey Institute for Technology and Education
06:22 $Adding fractions with different signs$
Adding fractions with different signs

540 views / 0 likes - added 9 years ago

U09_L2_T2_we2 Adding fractions with different signs More free lessons at: http://www.khanacademy.org/video?v=QS1LMomm0Gk Content provided by TheNROCproject.org - (c) Monterey Institute for Technology and Education
04:04
Multiplying Fractions and Mixed Numbers

671 views / 0 likes - added 9 years ago

U02_L2_T1_we2 Multiplying Fractions and Mixed Numbers More free lessons at: http://www.khanacademy.org/video?v=p729tFmpOXg Content provided by TheNROCproject.org - (c) Monterey Institute for Technology and Education
03:39
Multiplying Fractions Word Problem

631 views / 0 likes - added 9 years ago

U02_L2_T1_we4 Multiplying Fractions Word Problem More free lessons at: http://www.khanacademy.org/video?v=YJgIGwTysk0 Content provided by TheNROCproject.org - (c) Monterey Institute for Technology and Education
03:22 Popular
Dividing Mixed Numbers and Fractions

810 views / 0 likes - added 9 years ago

U02_L2_T3_we4 Dividing Mixed Numbers and Fractions More free lessons at: http://www.khanacademy.org/video?v=aNeCGxJVG7w Content provided by TheNROCproject.org - (c) Monterey Institute for Technology and Education
02:08
Dividing Fractions Word Problem

553 views / 0 likes - added 9 years ago

U02_L2_T3_we5 Dividing Fractions Word Problem More free lessons at: http://www.khanacademy.org/video?v=PQsgXNggV7Q Content provided by TheNROCproject.org - (c) Monterey Institute for Technology and Education
04:06
Adding Fractions with Unlike Denominators

535 views / 0 likes - added 9 years ago

U02_L3_T1_we2 Adding Fractions with Unlike Denominators More free lessons at: http://www.khanacademy.org/video?v=OVMceVL_CEQ Content provided by TheNROCproject.org - (c) Monterey Institute for Technology and Education
01:19
Ratios as Fractions in Simplest Form

627 views / 0 likes - added 9 years ago

U04_L1_T1_we1 Ratios as Fractions in Simplest Form More free lessons at: http://www.khanacademy.org/video?v=JWmCiZwoyMs Content provided by TheNROCproject.org - (c) Monterey Institute for Technology and Education
02:56 Popular
How to Quickly Multiply Any Number by 11 I The Great Courses

770 views / 0 likes - added 7 years ago

Most of us, when faced with math problems like these, immediately reach for a calculator or a pen. But imagine if you could perform these and other seemingly difficult—but surprisingly easy—calculations right in your head. Seems like an impossible feat? I
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07:36 Popular
Fractions - Adding and Subtracting

729 views / 0 likes - added 8 years ago

Fractions - Adding and Subtracting. Examples involving both numerical and variable expressions and shown! For more free math videos, visit http://JustMathTutoring.com
04:26 Popular
Converting Mixed Numbers to Improper Fractions

845 views / 0 likes - added 9 years ago

u2_l1_t2_we2 Converting Mixed Numbers to Improper Fractions More free lessons at: http://www.khanacademy.org/video?v=-sA-vI2a2mM Content provided by TheNROCproject.org - (c) Monterey Institute for Technology and Education
07:51 Popular
How To Solve One-step Multiplication And Division Equations With Fractions And Decimals

945 views / 0 likes - added 8 years ago

"Learn how to solve equations in one step by multiplying or dividing a number from both sides. These problems involve decimals and fractions. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/cc-sixth-grade-math/
01:47 Popular
Decompose Hundredths On Number Line | Fractions | 4th Grade | Khan Academy

1,573 views / 0 likes - added 8 years ago

Learn how to decompose a fraction with hundredths on a number line. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/cc-fourth-grade-math/cc-4th-fractions-topic/cc-4th-fractions-unlike-denom/e/decompose-fraction
04:32 Popular
How To Solve One-step Equations With Fractions And Decimals | 6th Grade | Khan Academy

1,840 views / 0 likes - added 8 years ago

Learn how to solve one-step addition and subtraction equations that have fractions and decimals in them. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/cc-sixth-grade-math/cc-6th-equations-and-inequalities/cc-
03:05 Popular
Simplifying Complex Fractions - Ex 1

1,030 views / 0 likes - added 8 years ago

Complex number worksheet with detailed solutions made by me! http://www.teacherspayteachers.com/Product/Complex-Numbers-Adding-Subtracting-Multiplying-Dividing Simplifying Complex Fractions - Ex 1 In this video, I simplify a complex fraction by getting co
03:29 Popular
Basic Math: Dividing Fractions

1,131 views / 0 likes - added 8 years ago

Basic Math: Dividing Fractions. In this video, I do two examples. In the first I divide a whole number by a fraction and in the second I divide a fraction by a fraction. For more free math videos, visithttp://JustMathTutoring.com
01:34
Fractions on the number line 1 (ex 1)

603 views / 0 likes - added 9 years ago

Fractions on the number line 1 (ex 1)
03:27 Popular
How To Evaluate Expressions In Two Variables With Decimals And Fractions | 6th Grade | Khan Academy

1,011 views / 0 likes - added 8 years ago

Learn how to evaluate expressions that have two different variables in them by using a technique called substitution (or "plugging in"). Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/cc-sixth-grade-math/cc-6t
09:23 Popular
Converting Fractions To Decimals | Decimals | Pre-Algebra | Khan Academy

2,119 views / 2 likes - added 8 years ago

How to express a fraction as a decimal Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/pre-algebra/decimals-pre-alg/decimal-to-fraction-pre-alg/e/converting_fractions_to_decimals?utm_source=YT&utm_medium=Desc&u
09:10 Popular
Dividing a Number by a Larger Number : Fractions/ Decimals / Percents

1,087 views / 1 likes - added 8 years ago

Dividing a Number by a Larger Number : Fractions/ Decimals / Percents. In this video, I show how to divide: 9 / (48) by making this number into a decimal and then into a percentage. For more free math videos, visithttp://justmathtutoring.com/
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03:21 Popular
Rational Number Word Problem With Fractions | Pre-Algebra | Khan Academy

1,712 views / 0 likes - added 8 years ago

Word problems force us to put concepts to work using real-world applications. In this example, determine the volume of frozen water and express the answer as a fraction. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.o
01:46 $Visualizing division by fractions$
Visualizing division by fractions

686 views / 0 likes - added 5 years ago

3D animation giving an intuitive understanding of what it means to divide by a fraction.
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05:17 Popular
Math Antics - Fractions Are Parts

1,009 views / 0 likes - added 9 years ago

Learn More at mathantics.com Visit http://www.mathantics.com for more Free math videos and additional subscription based content!
03:03 Popular
Math Antics - Fractions Are Division

905 views / 1 likes - added 9 years ago

Learn More at mathantics.com Visit http://www.mathantics.com for more Free math videos and additional subscription based content!
06:42 Popular
Math Antics - Types of Fractions

964 views / 1 likes - added 9 years ago

Learn More at mathantics.com Visit http://www.mathantics.com for more Free math videos and additional subscription based content!
09:15 Popular
Math Antics - Fractions and Decimals

3,284 views / 12 likes - added 9 years ago

Learn More at mathantics.com Visit http://www.mathantics.com for more Free math videos and additional subscription based content!
06:31 Popular
Math Antics - Comparing Fractions

1,443 views / 1 likes - added 9 years ago

Learn More at mathantics.com Visit http://www.mathantics.com for more Free math videos and additional subscription based content!
05:42 Popular
Math Antics - Multiplying Fractions

1,610 views / 3 likes - added 9 years ago

Learn More at mathantics.com Visit http://www.mathantics.com for more Free math videos and additional subscription based content!
08:31 Popular
Math Antics - Simplifying Fractions

1,410 views / 0 likes - added 9 years ago

Learn More at mathantics.com Visit http://www.mathantics.com for more Free math videos and additional subscription based content!
05:13 Popular
Math Antics - Dividing Fractions

2,429 views / 7 likes - added 9 years ago

Learn More at mathantics.com Visit http://www.mathantics.com for more Free math videos and additional subscription based content!
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Math Antics - Percents And Equivalent Fractions

1,774 views / 1 likes - added 9 years ago

Learn More at mathantics.com Visit http://www.mathantics.com for more Free math videos and additional subscription based content!
04:22 Popular
Math Antics - Adding and Subtracting Fractions

3,226 views / 2 likes - added 9 years ago

Learn More at mathantics.com Visit http://www.mathantics.com for more Free math videos and additional subscription based content!
14:22 Popular
Funny Fractions And Ford Circles - Numberphile

714 views / 2 likes - added 8 years ago

Farey Sequences, Ford Circles and a strange addition sign... Featuring Francis Bonahon from the University of Southern California. Watch EPIC CIRCLES: https://www.youtube.com/watch?v=sG_6nlMZ8f4 Periodic Videos chemistry: https://www.youtube.com/periodicv
08:25 Popular
A Fascinating Thing about Fractions - Numberphile

841 views / 0 likes - added 4 years ago

The Dynamical Uniform Boundedness Conjecture with Dr Holly Krieger. Extra from this interview: https://youtu.be/v4LWFzTyhpU Dr Krieger on the Numberphile Podcast: https://youtu.be/QmfQQzjpdpM More links & stuff in full description below ↓↓&d
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Equivalent Fractions Math Lesson for Kids

252 views / 0 likes - added 1 year ago

FULL EPISODES: https://www.GenerationGenius.com/watch
06:59 Popular
Math Antics - Converting Base-10 Fractions

962 views / 0 likes - added 9 years ago

Learn More at mathantics.com Visit http://www.mathantics.com for more Free math videos and additional subscription based content!
02:01
Multiplying Fractions by Whole Numbers Math Lesson for Kids

160 views / 0 likes - added 1 year ago

FULL EPISODES: https://www.GenerationGenius.com/watch
02:01
Compare Non-Equivalent Fractions | Math Lesson for Grades 3-5 | Mini-Clip

318 views / 0 likes - added 1 year ago

FULL EPISODES: https://www.GenerationGenius.com/watch
02:01
Intro to Fractions Using the Number Line | Math Lesson for Grades 3-5 | Mini-Clip

374 views / 0 likes - added 1 year ago

FULL EPISODES: https://www.GenerationGenius.com/watch
02:43
The Order of Operations Song (PEMDAS) | Silly School Songs

633 views / 0 likes - added 3 years ago

Learn the Order of Operations (including an important note about PEMDAS) with this fun, funky and very catchy tune. For more information and music, visit http://sillyschoolsongs.com. Lyrics:Parenthesis, ExponentsMultiply or Divide, Add or SubtractParenthe
01:37 Popular
The 4 Times Table Song (Multiplying by 4) | Silly School Songs

1,513 views / 2 likes - added 3 years ago

INTERACTIVE LEARNING - FLAShCARDS CLICK below!http://sillyschoolsongs.com/lessonplans/multiplyby4Learn how to multiply by 4 with this fun and catchy 4 times table song for kids. For more information and music, visit http://sillyschoolsongs.com. It's time
02:17 Popular
The Advantages of Using the Least Common Denominator When Adding & Subtracting Denominators

752 views / 0 likes - added 5 years ago

The Advantages of Using the Least Common Denominator When Adding & Subtracting Denominators. Part of the series: Adding and Subtracting Fractions. Using the least common denominator when adding and subtracting fractions certainly has its fair share of adv
11:57
The Wallis Formula For π

581 views / 0 likes - added 7 years ago

Start with the pair of fractions (2/1)(2/3). Now increment each number by 2 to get the pair of fractions (4/3)(4/5). Repeat this to get the next pair, and repeat this infinitely many times. If you then multiply all the fractions, you get a marvelous value
11:30
Ordering Numeric Expressions

576 views / 0 likes - added 9 years ago

Converting percentages and fractions to decimals to order numbers
00:59 Popular
Average Height Of A Building's Floor | Multiplication And Division | 3th Grade | Khan Academy

962 views / 0 likes - added 8 years ago

Learn how to use the Khan Academy number line widget. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/cc-third-grade-math/cc-3rd-fractions-topic/cc-3rd-fractions-on-the-number-line/e/fractions_on_the_number_lin
01:57 Popular
The 3 Times Table Song (Multiplying by 3) | Silly School Songs

1,334 views / 3 likes - added 3 years ago

Kids can learn their 3 times table (multiplying by 3) with this fun song that will get them moving! For more music and information, visit http://sillyschoolsongs.com. Lyrics:Let's learn how to multiply by 3The 3 times table won't you say it with meLet's l
06:44 Popular
Math Antics - Convert any Fraction to a Decimal

1,861 views / 2 likes - added 9 years ago

http://www.mathantics.com Here is the video mentioned about converting Base-10 fractions: http://www.youtube.com/watch?v=_jcW-ZgpRbM Here is the video mentioned about decimal numbers: http://www.youtube.com/watch?v=Mst8iZjIpFE And here is the video mentio
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09:23
Ordering numeric expressions

464 views / 0 likes - added 9 years ago

Ordering numbers expressed as decimals, fractions, and percentages More free lessons at: http://www.khanacademy.org/video?v=Llt-KkHugRQ
04:51
Ratios for recipes

636 views / 0 likes - added 6 years ago

Ratios and fractions for cooking recipes.
04:32
The Zeroth Power | Arithmetic Operations | 6th Grade | Khan Academy

609 views / 0 likes - added 8 years ago

Learn why a number raised to the zero power equals 1. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/cc-sixth-grade-math/cc-6th-arithmetic-operations/cc-6th-exponents/e/positive_and_zero_exponents?utm_source=Y
04:20 Popular
Visually Converting From Tenths To Hundredths | 4th Grade | Khan Academy

1,183 views / 0 likes - added 8 years ago

Learn how to convert fractions from tenths to hundredths using grid diagrams. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/cc-fourth-grade-math/cc-4th-fractions-topic/cc-4th-fractions-unlike-denom/e/equivale
05:15 Popular
Thinking About The Changing Values Of Variables And Expressions | 6th Grade | Khan Academy

839 views / 0 likes - added 8 years ago

Explore how the value of an algebraic expression changes as the value of its variable changes. The algebraic expressions used in this video are 100-x, 5/x + 5, and (3y)/(2y). Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacad
04:11 Popular
Decomposing Hundredths Into Tenths And Hundredths | 4th Grade | Khan Academy

1,476 views / 0 likes - added 8 years ago

Learn how to decompose a fraction into tenths and hundredths. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/cc-fourth-grade-math/cc-4th-fractions-topic/cc-4th-fractions-unlike-denom/e/decompose-fractions-with
12:47 Popular
Math Antics - Mixed Numbers

2,298 views / 1 likes - added 6 years ago

In this re-make of our Mixed Numbers video, we take a more intuitive approach to converting between Mixed Numbers and Improper Fractions. You can still access the old version of the video here: https://www.youtube.com/watch?v=-55KA6kaXFY
00:42
Is One A Number? #shorts

300 views / 0 likes - added 2 years ago

What IS 1? It seems like a really stupid, obvious question, but the truth is that 1 is seriously complex. Is it even a number? Number theory pushes and pulls on 1, showing that it's everything all at once -- yet sometimes it's powerless. Cube it, multiply
06:29 Popular
Multiplying Decimals: Place Value And Reordering | Decimals | Pre-Algebra | Khan Academy

1,389 views / 0 likes - added 8 years ago

We want you to develop an intuition about how to work with decimals. Understanding how you can rewrite decimals by considering the place value will help you multiply! Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/
14:13 Popular
Introduction To Ratios | Ratios, Proportions, Units, And Rates | Pre-Algebra | Khan Academy

1,941 views / 0 likes - added 8 years ago

What a ratio is. Simple ratio problems. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/pre-algebra/rates-and-ratios/ratios_and_proportions/e/ratio_word_problems?utm_source=YT&utm_medium=Desc&utm_campaign=PreAl
03:03 Popular
Introduction To Exponents | Pre-Algebra | Khan Academy

1,545 views / 0 likes - added 8 years ago

Taking an exponent is basically the act of repeated multiplication. You know how to multiply, right? If so, understanding exponents is completely within your grasp! Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/ma
04:53 Popular
Are preservatives bad for you?

2,071 views / 0 likes - added 7 years ago

View full lesson: http://ed.ted.com/lessons/are-preservatives-bad-for-you-eleanor-nelsen Food doesn’t last. In days, sometimes hours, bread goes moldy, apple slices turn brown, and bacteria multiply in mayonnaise. But you can find all of these foods out o
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04:50
Freaky Fraction Spitting

345 views / 0 likes - added 3 years ago

Take a pile of nine pebbles or nine coins or nine cucumbers (but you can't use zucchini!) and split them into two piles. Then split each of those piles into two piles. And keep doing this until you have nine piles each with one object. What could be mathe
Henrietta Lacks: The 'immortal' cells that changed the world - BBC REEL

215 views / 0 likes - added 2 years ago

In 1951, Henrietta Lacks, a black woman from Baltimore, USA, died of cancer. However, cells taken from her body without her knowledge continued to grow and multiply even after her death. They became the first 'immortalised human cell line' and changed med
01:31 Popular
Filling Rectangles With Squares | Geometry | Early Math | Khan Academy

1,178 views / 0 likes - added 8 years ago

Learn how to fill rectangles with squares. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/early-math/cc-early-math-geometry-topic/cc-early-math-fractions-of-shapes/e/filling-rectangles-with-same-sized-squares?
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10 MATH TRICKS THAT WILL EMBARRASS YOUR TEACHER

595 views / 0 likes - added 5 years ago

INCREDIBLY COOL MATH TRICKS FOR KIDS This video is dedicated to all those people who think that math was boring. Today, we are here to prove the opposite! In this video, we collected the coolest math tricks for all ages. It doesn't matter if you're 6 or 6
05:06 Popular
Is There A Disease That Makes Us Love Cats? - Jaap De Roode

1,292 views / 4 likes - added 7 years ago

View full lesson: http://ed.ted.com/lessons/is-there-a-disease-that-makes-us-love-cats-jaap-de-roode Today, about a third of the world’s population is infected with a strange disease called toxoplasmosis — and most of them never even know it. And while th
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03:27 Popular
How To Use The Distributive Property To Factor Out The Greatest Common Factor | Khan Academy

1,169 views / 0 likes - added 8 years ago

Learn how to apply the distributive property to factor numerical expressions (no variables). Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/cc-sixth-grade-math/cc-6th-expressions-and-variables/cc-6th-distribut
02:37 Popular
How To Write Basic Expressions With Variables | 6th Grade | Khan Academy

845 views / 0 likes - added 8 years ago

Learn how to write basic algebraic expressions. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/cc-sixth-grade-math/cc-6th-expressions-and-variables/cc-6th-writing-expressions/e/writing-expressions-with-variabl
06:29 Popular
How To Use The Distributive Property With Variables | 6th Grade | Khan Academy

1,293 views / 0 likes - added 8 years ago

Learn how to apply the distributive property to algebraic expressions. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/cc-sixth-grade-math/cc-6th-expressions-and-variables/cc-6th-distributive-property/e/distrib
01:58 Popular
How To Find Equivalent Expressions By Combining Like Terms And Using The Distributive Property

1,241 views / 0 likes - added 8 years ago

"Equivalent algebraic expressions exercise Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/cc-sixth-grade-math/cc-6th-expressions-and-variables/cc-6th-equivalent-expressions/e/equivalent-forms-of-expressions-1?
02:54 Popular
How To Describe Real-world Situations With Inequalities | 6th Grade | Khan Academy

1,152 views / 0 likes - added 8 years ago

Learn how to write inequalities to model real-world situation. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/cc-sixth-grade-math/cc-6th-equations-and-inequalities/cc-6th-inequalities/e/inequalities-in-one-var
10:30
World's First Programmable Magic Wand!

636 views / 1 likes - added 5 years ago

Thanks Kano for sponsoring this video! Learn more about the Harry Potter Kano Coding kit, and pre-order one for $99.99 at https://getkano.co/2NFoCv6 A message from Kano: Harry Potter Kano Coding Kit: Build a wand that makes magic on a screen. Learn to cod
04:05 Popular
How To Find Mistakes In One Step Equations | 6th Grade | Khan Academy

752 views / 0 likes - added 8 years ago

Learn how to spot mistakes in someone else's work as they attempt to solve one-step equations. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/cc-sixth-grade-math/cc-6th-equations-and-inequalities/cc-6th-one-st
03:09 Popular
How To Write Basic Algebraic Expressions From Word Problems | 6th Grade | Khan Academy

946 views / 0 likes - added 8 years ago

Learn how to write basic expressions with variables to describe situations described in word problems. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/cc-sixth-grade-math/cc-6th-expressions-and-variables/cc-6th
04:21 Popular
How To Write One-step Equations For Word Problems | 6th Grade | Khan Academy

1,451 views / 0 likes - added 8 years ago

Learn how to write basic equations to model real-world situations. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/cc-sixth-grade-math/cc-6th-equations-and-inequalities/cc-6th-super-yoga/e/equations-in-one-vari
01:41 Popular
How to Add and Subtract Mixed Numbers and Show the Work

2,133 views / 1 likes - added 5 years ago

How to Add and Subtract Mixed Numbers and Show the Work. Part of the series: Adding and Subtracting Fractions. When adding and subtracting mixed numbers it is always important to remember to show your work. Add and subtract mixed numbers and show the work
04:42 Popular
How To Write Algebraic Expressions From Word Problems | 6th Grade | Khan Academy

1,276 views / 0 likes - added 8 years ago

Learn how to write expressions with variables to describe situations described in word problems. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/cc-sixth-grade-math/cc-6th-expressions-and-variables/cc-6th-alg-e
09:14
EASY MULTIPLICATION STRATAGY | LATTICE MULTIPLICATION | EASY FOR KIDS

326 views / 0 likes - added 3 years ago

Lattice multiplication is also known as the Italian method, Chinese method, Chinese lattice, gelosia multiplication, sieve multiplication, shabakh, diagonally or Venetian squares, is a method of multiplication that uses a lattice to multiply two multi-dig
01:31 Popular
You Can Eat Too Much Protein — Here's What Happens When You Do

921 views / 0 likes - added 5 years ago

Eating too much protein can have detrimental effects on your health. It can lead to dehydration and weight gain. To find out how many grams of protein you should be eating, calculate your weight in kilograms and multiply by 0.8. Science Insider tells you
11:27 Popular
Can You Solve The Viral 11x11 = 4 Puzzle? The Correct Answer Explained

3,046 views / 1 likes - added 7 years ago

If 11x11=4 and 22x22=16, what is 33x33=? This puzzle has been shared with the claim that only geniuses can solve it. It has gotten millions of views on the internet and Facebook as people have debated the correct answer. In this video I present what many
06:55 Popular
Place Value For Decimals Greater Than One (examples) | 4th Grade | Khan Academy

1,163 views / 1 likes - added 8 years ago

Understand decimal numbers that are greater than 1. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/cc-fourth-grade-math/cc-4th-decimals/cc-4th-decimals-greater-than-one/e/decimals-greater-than-one-intuition?ut
01:18 Popular
Can You Make 4 Triangles From 6 Matches?

977 views / 0 likes - added 7 years ago

Can you use 6 matches to make 4 triangles of equal size and equal shape? This is harder than it sounds! Give it a try before watching the video for a solution. If you like my videos, you can support me at Patreon: http://www.patreon.com/mindyourdecisions
02:07 Popular
Percentage Of A Whole Number | Decimals | Pre-Algebra | Khan Academy

1,525 views / 0 likes - added 8 years ago

We hope you're beginning to see that there's more than one way to skin a cat. In other words, there are several different ways to solve problems involving percentages, decimals, and fractions. Watch as find the percentage of a whole number. Watch the next
04:22 Popular
Impossible Algebra Problem

1,237 views / 0 likes - added 7 years ago

This problem is making the rounds. Can you place numbers in the four boxes so all the equations are true? Blog post (text/image explanation): http://wp.me/p6aMk-4up If you like my videos, you can support me at Patreon: http://www.patreon.com/mindyourdecis
11:09 Popular
15 GENIUS MATH TRICKS THAT ARE ACTUALLY EASY

933 views / 0 likes - added 6 years ago

How to embarrass your teacher. Smart and simple backs to school math hacks and tricks. Learn how to multiply fast in your head. Subscribe to 5-Minute Crafts KIDS: https://goo.gl/PEuLVt ----------------------------------------------------------------------
03:25 Popular
Can You Solve This? AA + BB + CC = ABC

2,476 views / 0 likes - added 7 years ago

If AA + BB + CC = ABC, what are the values of A, B, and C? All the digits are distinct and positive. Watch the video for a solution. Blog (text explanation): http://wp.me/p6aMk-4Cm If you like my videos, you can support me at Patreon: http://www.patreon.c
09:29 Popular
Dividing Decimals With Hundredths Example 3 | Decimals | Pre-Algebra | Khan Academy

1,079 views / 0 likes - added 8 years ago

The old saying is "practice makes perfect." Let's keep practicing dividing decimals and making our divisor a whole number. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/pre-algebra/decimals-pre-alg/dividing-d
04:42
How Warren Buffett Tried To Trick Bill Gates In A Dice Game

684 views / 0 likes - added 7 years ago

Warren Buffett once challenged Bill Gates to a dice game similar to this one. How would you play the game? Blog post (text explanation) http://wp.me/p6aMk-4ro Source The dice numbers and the story are described at Microsoft Research's website for non-tran
03:33 Popular
Finding A Percentage | Decimals | Pre-Algebra | Khan Academy

1,254 views / 0 likes - added 8 years ago

Once again, fractions are our friends as we use them to find a percentage. You'll also see a couple of different ways to arrive at the answer. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/pre-algebra/decimal
16:34
18 EASY WAYS TO TEACH MATH TO CHILDREN

425 views / 0 likes - added 5 years ago

TEACHING BASIC MATH TO KIDS We know many ways to keep toddlers entertained. Today we are here to prove that math can be fun! It's important not only to keep them happy and excited but also to educate and develop them. There are many basic skills to train
01:57 Popular
I Will Read Your Mind - Math Magic Trick

1,249 views / 2 likes - added 7 years ago

Pick a 2 digit number. Got it? Now and add up the digits. Subtract that from your original number. Look up the resulting number in the table. Can I figure out the symbol you are looking at? This video predicts your symbol and explains why this math trick
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05:57
How To Split A Cake Fairly Using Math

689 views / 0 likes - added 7 years ago

How can 2 people split up a cake, knowing that each person wants to get a larger piece than the other? What about 3 people, or even N people? This is an example of a fair division problem from game theory. There are many cake-cutting algorithms to produce
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06:18 Popular
Can You Solve The Diluted Wine Puzzle?

759 views / 1 likes - added 7 years ago

A servant has a method to steal wine. He removes 3 cups from a barrel of wine and replaces it with 3 cups of water. The next day he wants more wine, so he does the same thing: he removes 3 cups from the same barrel (now with diluted wine) and replaces it
03:40 Popular
Multi-step Word Problem With Decimals And Subtraction | Pre-Algebra | Khan Academy

1,606 views / 0 likes - added 8 years ago

First visualize this word problem then use subtraction and multiplication of decimals and fractions to get at the answer. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/pre-algebra/applying-math-reasoning-topi
06:24 Popular
The Seemingly Impossible Escape Logic Puzzle

1,446 views / 0 likes - added 7 years ago

An evil logician takes Alice and Bob captive. They have a chance to escape if they can deduce the total number of trees in the prison. Can they figure it out? Source of puzzle wu: riddles forum https://www.ocf.berkeley.edu/~wwu/cgi-bin/yabb/YaBB.cgi?board
04:52 Popular
Can You Solve The Two Rope Puzzle?

708 views / 0 likes - added 7 years ago

You have two ropes and a lighter. Each rope burns in 60 minutes, but the ropes do not burn at a constant rate. How can you measure 45 minutes by burning the ropes? Some of you might have heard this problem before. If so, try this variation: how can you me
02:25 Popular
Halves And Fourths | Geometry | Early Math | Khan Academy

786 views / 0 likes - added 8 years ago

Learn how to divide shapes into two or four equal sections. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/early-math/cc-early-math-geometry-topic/cc-early-math-fractions-of-shapes/e/halves-and-fourths?utm_sou
06:24 Popular
Can You Solve The Chameleon Riddle?

1,004 views / 0 likes - added 7 years ago

A museum has 13 blue, 15 red, and 17 green chameleons. Whenever two chameleons of different colors meet, they both change into the color of the other chameleon (if blue and red met, for example, they would both turn green). As the chameleons mingle, is it
03:05 Popular
Equal Parts Of Circles And Rectangles | Geometry | Early Math | Khan Academy

1,362 views / 1 likes - added 8 years ago

Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/early-math/cc-early-math-geometry-topic/cc-early-math-fractions-of-shapes/e/equal-parts-of-circles-and-rectangles?utm_source=YT&utm_medium=Desc&utm_campaign=Early
07:52 Popular
Find The 10 Digit Number Classic Puzzle And Solution

883 views / 0 likes - added 7 years ago

I'm thinking of a 10 digit number that uses the each digit 0 to 9 exactly once and where the number formed by the first n digits is divisible by n. What could my number be? The video explains how to find the answer using tests for divisibility. Blog post:
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SURPRISING Coin Flipping Probability - Flips To HH Versus HT

875 views / 0 likes - added 7 years ago

What is the expected number of coin flips until you get two heads in a row (HH)? What is the expected number of coin flips until you get a heads followed by a tails (HT)? The video presents the solution and an intuitive explanation for this probability ri
04:13 Popular
Adults Stumped By Geometry Problems For 10 Year Olds. Can You Solve Them?

841 views / 0 likes - added 7 years ago

These homework problems were given to 10 year old children (Year 5) in England (Glossop, Derbyshire) and they were posted to Facebook when some adults found them to be difficult. One person claimed the problems were impossible to solve. Can you figure the
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TOUGH Interview Question - Ways To Give 11 Coins To 3 People

606 views / 0 likes - added 7 years ago

How many ways can you divide 11 coins to 3 people? How many ways are there if each person has to get at least 1 coin? This puzzle is an example of a technical interview question. The video demonstrates the solution, which indicates the number of non-negat
02:57 Popular
Viral Facebook Math Problem

1,286 views / 1 likes - added 7 years ago

This problem has over 2 million comments on Facebook and is getting coverage in mainstream media and blogs. Can you figure out this Facebook fruit algebra puzzle involving apples, bananas, and coconuts? The video presents what many people consider to be t
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Can You Solve The 3 Cards Riddle?

677 views / 0 likes - added 7 years ago

There are 3 cards in this problem. One card is blue on both sides, another is red on both sides, and the last is red on one side and blue on the other. The cards are put in a bag and I pick one at random. Without looking at the colors on the card, I place
03:31 Popular
How Logical Are You? The Irrationality Illusion Tricks Most

802 views / 0 likes - added 7 years ago

This video relates a cognitive bias ("irrational" decision) to an optical illusion (picture at 1:45). For more, check out my new book, "The Irrationality Illusion: How to Make Smart Decisions And Overcome Bias" http://amzn.to/1o3FaAg Blog post (text and i
02:45 Popular
The Day After Tomorrow Is Yesterday Riddle. Can You Solve It?

703 views / 0 likes - added 7 years ago

This puzzle is popular on Facebook and many other sites. "When the day after tomorrow is yesterday, then today will be as far from Wednesday as today was from Wednesday when the day before yesterday was tomorrow. What day is today?" Can you solve this tri
02:23
This SAT Math Question Has A Mistake

663 views / 0 likes - added 7 years ago

This question appeared on the October 1980 SAT exam. Like all questions, it was supposed to have exactly one correct answer. However the test-makers made a mistake. Can you figure out what they did wrong? Blog post (text explanation): http://wp.me/p6aMk-4
03:33 Popular
Can You Solve This Intelligence Test? Viral Facebook Puzzle

738 views / 0 likes - added 7 years ago

If 6 + 4 = 210, and 9 + 2 = 711, what is the rule to combine numbers? This "intelligence test" has been shared more than 3 million times on Facebook. On Twitter people claim solving it means you have an IQ of more than 150 (genius level). In this video I
05:09 Popular
Can You Solve The Snake Eyes Probability Riddle?

838 views / 0 likes - added 7 years ago

You close your eyes and roll a pair of dice. The casino dealer announces that at least one of the rolls is showing a 1.What is the probability that both dice are showing a 1? Watch the video for the solution. (Snake eyes is a term for rolling a pair of 1s
06:57
When Is Christmas? Mentally Convert Date To Day Of The Week

529 views / 0 likes - added 7 years ago

January 1, 2016 is a Friday. When will Christmas be in 2016? What about Christmas in 2055? You can do this in your head! Blog post (text explanation): http://wp.me/p6aMk-4qQ Doomsday Rule (previous video): https://www.youtube.com/watch?v=UsStBxY9STw Calcu
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Can You Solve A 5th Grade Problem From China? Find The Area Of ABCD

788 views / 0 likes - added 5 years ago

Thanks to Eric from Miami for suggesting this problem and sending a solution! The diagram shows a quadrilateral ABCD with the values for some angles and the length of AB. Can you figure out the area of ABCD? Subscribe: https://www.youtube.com/user/MindYou
05:55 Popular
"Impossible" Logic Puzzle - How Many Liars Are At The Party?

807 views / 0 likes - added 7 years ago

A party has 100 people who are either liars are truth tellers. Liars always lie and truth tellers always say the truth. After the party you ask each person, "How many truth tellers did you shake hands with?" Each person gives a different answer from 0 to
03:28 Popular
Flower Math Problem - Adults Stumped By Question For Kids In China

1,387 views / 2 likes - added 7 years ago

This problem is said to come from a test given to a Chinese kindergarten class (5 year olds). It was posted online and caused a lot of debate as adults were stumped about the correct answer, some saying it is impossible. Can you figure it out? This video
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Moving Faster Than The Speed Of Light? Special Relativity Velocity Addition Formula

681 views / 0 likes - added 7 years ago

If train A is moving towards train B, and each train moves at 75% the speed of light (relative to the ground), will an observer on train A think that train B is moving at 150% the speed of light? But nothing moves faster than the speed of light, so what i
04:53 Popular
Can You Solve The Friendship Riddle?

1,298 views / 0 likes - added 7 years ago

In a group of 6 people, you might find that some people are friends on Facebook, or you might find out that no one is friends on Facebook. Show that there is always a group of 3 people in which either: (a) all 3 people are mutual friends or (b) the 3 peop
01:49 Popular
This Matchstick Puzzle Is

853 views / 1 likes - added 7 years ago

This classic matchstick/toothpick puzzle is making the rounds because it is supposedly "extremely hard" for adults. Can you make 3 squares by moving 3 matchsticks? You cannot break any of the sticks, the resulting squares must be of equal size, and each t
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07:49 Popular
Can You Solve The Viral 9 = 72 Puzzle? The Correct Answer Explained

1,073 views / 0 likes - added 7 years ago

This problem has been shared millions of times on Twitter/Facebook with the claim "99% fail" to solve it and that only a genius could find the correct answer. If 9 = 72, 8 = 56, 7 = 42, 6 = 30, 5 = 20, then 3 = ? In this video I explain what many people b
06:01 Popular
Can You Solve The Viral 1 + 4 = 5 Puzzle? The Correct Answer Explained

11.8k views / 1 likes - added 7 years ago

This problem was shared on Facebook with the claim that only one in a thousand could figure it out. It went viral and generated over 3 million comments. Here is the problem. If 1 + 4 = 5, 2 + 5 = 12, 3 + 6 = 21, what is 8 + 11 = ? This video presents what
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Can You Solve The Race To December 31 Riddle?

713 views / 0 likes - added 7 years ago

Here's a fun game you can play with another person. The game starts on January 1. Each of two players takes turns calling out another date. The new date has to be a later date in the year with either the same month OR the same day (from January 1, a playe
03:21 Popular
Can You Solve A Puzzle That Fooled Richard Feynman?

706 views / 0 likes - added 5 years ago

What is the radius of the circle, in simplest terms involving a, b, and c? I read that even the great mind Richard Feynman made a mistake. Watch the video to learn the common mistake and what the correct answer is. Source Feynman story http://web.media.mi
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What Is The Area? "You Should Be Able To Solve This"

505 views / 0 likes - added 5 years ago

Thanks to Reio in Romania for emailing me this fun problem! What is the area? This puzzle was shared with the tagline "you should be able to solve this." Solution to 5th grade Chinese challenge problem https://youtu.be/OuJQaxZvlYs My blog post for this vi
13:40 Popular
BEST Way To Play Memory (Card Game) - WIN Using Math

948 views / 0 likes - added 7 years ago

The card game of memory (aka concentration) is a children's game to test visual recall. Strategically you can figure out the best move by doing probability calculations. This video explains the best possible way to play the game mathematically. You can le
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Can YOU Solve It? This Question Stumped 75% Of PhD Economists

604 views / 0 likes - added 7 years ago

Introductory economics courses cover the concept of an opportunity cost. Can you figure out the opportunity cost for the problem in the video? This video presents a question that surprisingly more than 75% of PhD economists did not answer correctly. Paper
11:11 Popular
THAT IS HOW YOU CAN CONFUSE YOUR MATH TEACHER AT SCHOOL

1,164 views / 1 likes - added 6 years ago

Learn how to draw prospective without a ruler, measure angles and figure out how many days there are in any given month with your hand! These and many others mind-blowing Math tricks are in this video! There are some GREAT tricks for young mathematicians!
09:11 Popular
Can You Solve The Rectangle Ratio Puzzle? The Surprising Answer

850 views / 0 likes - added 7 years ago

Start with a unit square (a rectangle with both sides equal to 1, call it R1). Attach a rectangle of area 1 to its right side, then attach a rectangle of area 1 to its top. The border of this new shape is another rectangle, call it R2. We can repeat the p
03:48 Popular
Can You Solve This Harvard Admissions Question? Algebra Problem, 1869

1,464 views / 0 likes - added 7 years ago

The Harvard admissions exam in 1869 included this algebra problem: "A man bought a watch, a chain, and a locket for $216. The watch and locket together cost three times as much as the chain, and the chain and locket together cost half as much as the watch
08:05 Popular
Can You Solve The Hardest Easy Geometry Problem?

1,262 views / 1 likes - added 7 years ago

In the figure, what is the value of angle x? This problem is known as Langley's Adventitious Angles. It is also known as the hardest easy geometry problem because it can be solved by elementary methods but it is notoriously difficult to work out. Can you
05:57 Popular
Can You Solve This 6th Grade Geometry Problem From Singapore? The Area Of A "Claw"

1,123 views / 1 likes - added 7 years ago

This problem was given to Primary 6 (age 11-12) students in Singapore. What is the area of the shaded region in the video, which consists of the region bounded by 4 quarter circles in a 3x3 grid of squares, and each square has a side length of 4? The shad
03:51 Popular
Can You Solve This MIT Admissions Question? Geometry Problem, 1869

944 views / 0 likes - added 7 years ago

The Massachusetts Institute of Technology (MIT) is one of the top ranked universities in the world. This question appeared on its admissions exam nearly 150 years ago. "The perpendicular dropped from the vertex of the right angle upon the hypotenuse divid
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Can You Solve The Missing Sock Puzzle?

614 views / 0 likes - added 7 years ago

A statistician keeps a simple wardrobe. He only purchases pairs of black socks and white socks, and he keeps all of the socks in a pile in the drawer. Recently one of the socks was lost in the laundry. The socks have a mathematical property. If you select
02:51 Popular
The Horse Horseshoe Boots Viral Algebra Problem - The Correct Answer Explained

1,720 views / 2 likes - added 7 years ago

A lot of people are arguing over the correct answer to this algebra problem involving horses, horseshoes, and boots. A Facebook post with this problem has over 500,000 comments. Can you figure it out? In this video I explain the correct answer. Blog post:
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Can You Solve This 8th Grade Geometry Problem? 75% Got The Wrong Answer

997 views / 0 likes - added 7 years ago

What is angle A in the star-shaped figure? This problem appeared on the 1999 AMC 8 test (intended for 8th grade students in the US). Approximately 75% of test-takers did not mark the correct response. Can you figure it out? Watch the video for a solution.
03:29 Popular
Comparing Decimals Example 1 | Decimals | 4th Grade | Khan Academy

1,489 views / 1 likes - added 8 years ago

Learn how to compare decimals with tenths and hundredths. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/cc-fourth-grade-math/cc-4th-decimals/cc-4th-compare-decimals/e/comparing_decimals_1?utm_source=YT&utm_me

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