Search Results: "Understanding Division Of Fractions | Fractions | Pre-Algebra | Khan Academy"

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

1,203 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/
03:53 Popular
Plotting Basic Fractions On The Number Line | Fractions | Pre-Algebra | Khan Academy

1,358 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
09:50 Popular
Adding And Subtracting Fractions | Fractions | Pre-Algebra | Khan Academy

2,059 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

2,064 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
04:33 Popular
Multiplying Negative And Positive Fractions | Fractions | Pre-Algebra | Khan Academy

868 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_
03:45 Popular
Visualizing Equivalent Fractions | Fractions | Pre-Algebra | Khan Academy

1,080 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
04:24 Popular
Example Of Subtracting Fractions With Unlike Denominators | Fractions | Pre-Algebra | Khan Academy

1,589 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
09:15 Popular
Mixed Numbers And Improper Fractions | Fractions | Pre-Algebra | Khan Academy

1,735 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
03:08 Popular
Multiplying Unit Fractions And Whole Numbers | Fractions | Pre-Algebra | Khan Academy

1,655 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

2,037 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
02:32 Popular
Dividing Whole Numbers And Fractions: Potpourri | Fractions | Pre-Algebra | Khan Academy

1,716 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
09:23 Popular
Converting Fractions To Decimals | Decimals | Pre-Algebra | Khan Academy

2,071 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
03:21 Popular
Rational Number Word Problem With Fractions | Pre-Algebra | Khan Academy

1,700 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
02:32 Popular
Comparing Fractions Visually With Pies | Fractions | 4th Grade | Khan Academy

1,030 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

1,433 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

1,457 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

1,093 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
06:06 Popular
Equivalent Fractions And Different Wholes | Fractions | 4th Grade | Khan Academy

800 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-
03:33 Popular
Finding A Percentage | Decimals | Pre-Algebra | Khan Academy

1,242 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
02:07 Popular
Percentage Of A Whole Number | Decimals | Pre-Algebra | Khan Academy

1,506 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
03:03 Popular
Introduction To Exponents | Pre-Algebra | Khan Academy

1,499 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
02:49 Popular
Percent Word Problem Example 2 | Decimals | Pre-Algebra | Khan Academy

1,166 views / 0 likes - added 8 years ago

It's nice to practice conversion problems, but how about applying our new knowledge of percentages to a real life problem like recycling? Hint: don't forget your long division! Practice this lesson yourself on KhanAcademy.org right now: https://www.khanac
06:17 Popular
Solving Percent Problems | Decimals | Pre-Algebra | Khan Academy

876 views / 0 likes - added 8 years ago

We'll use algebra to solve this percent problem. Watch the next lesson: https://www.khanacademy.org/math/pre-algebra/decimals-pre-alg/percent-word-probs-pre-alg/v/solving-percent-problems-2?utm_source=YT&utm_medium=Desc&utm_campaign=PreAlgebra Missed the
05:27 Popular
Converting Directly From Binary To Hexadecimal | Pre-Algebra | Khan Academy

1,273 views / 0 likes - added 8 years ago

Watch the next lesson: https://www.khanacademy.org/math/pre-algebra/exponents-radicals/World-of-exponents/v/exponents-warmup?utm_source=YT&utm_medium=Desc&utm_campaign=PreAlgebra Missed the previous lesson? https://www.khanacademy.org/math/pre-algebra/app
14:13 Popular
Introduction To Ratios | Ratios, Proportions, Units, And Rates | Pre-Algebra | Khan Academy

1,893 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
03:40 Popular
Multi-step Word Problem With Decimals And Subtraction | Pre-Algebra | Khan Academy

1,556 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
09:17 Popular
Unit Conversion Within The Metric System | Pre-Algebra | Khan Academy

1,817 views / 0 likes - added 8 years ago

Metric unit conversion Watch the next lesson: https://www.khanacademy.org/math/pre-algebra/rates-and-ratios/metric-system-tutorial/v/converting-within-the-metric-system?utm_source=YT&utm_medium=Desc&utm_campaign=PreAlgebra Missed the previous lesson? http
12:49 Popular
Scientific Notation Examples | Pre-Algebra | Khan Academy

1,155 views / 0 likes - added 8 years ago

More scientific notation examples Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/pre-algebra/exponents-radicals/scientific-notation/e/scientific_notation?utm_source=YT&utm_medium=Desc&utm_campaign=PreAlgebra W
03:21 Popular
Introduction To Perimeter | Measurement | Pre-Algebra | Khan Academy

780 views / 0 likes - added 8 years ago

Find perimeter by adding side-lengths of various figures. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/pre-algebra/measurement/perimeter/e/perimeter_1?utm_source=YT&utm_medium=Desc&utm_campaign=PreAlgebra Wa
10:00
Introduction To Number Systems And Binary | Pre-Algebra | Khan Academy

606 views / 0 likes - added 8 years ago

Watch the next lesson: https://www.khanacademy.org/math/pre-algebra/applying-math-reasoning-topic/alternate-number-bases/v/hexadecimal-number-system?utm_source=YT&utm_medium=Desc&utm_campaign=PreAlgebra Missed the previous lesson? https://www.khanacademy.
09:16 Popular
Adding/subtracting Negative Numbers | Pre-Algebra | Khan Academy

1,345 views / 0 likes - added 8 years ago

Adding and subtracting negative numbers Watch the next lesson: https://www.khanacademy.org/math/pre-algebra/negatives-absolute-value-pre-alg/mult-div-negatives-pre-alg/v/multiplying-positive-and-negative-numbers?utm_source=YT&utm_medium=Desc&utm_campaign=
03:43 Popular
Converting From Decimal To Hexadecimal Representation | Pre-Algebra | Khan Academy

1,422 views / 0 likes - added 8 years ago

Watch the next lesson: https://www.khanacademy.org/math/pre-algebra/applying-math-reasoning-topic/alternate-number-bases/v/binary-addition?utm_source=YT&utm_medium=Desc&utm_campaign=PreAlgebra Missed the previous lesson? https://www.khanacademy.org/math/p
20:48 Popular
Introduction To Scientific Notation | Pre-Algebra | Khan Academy

1,891 views / 0 likes - added 8 years ago

Introduction to scientific notation. An in-depth discussion about why and how scientific notation is used. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/pre-algebra/exponents-radicals/scientific-notation/e/sc
02:48 Popular
Adding In Binary | Applying Mathematical Reasoning | Pre-Algebra | Khan Academy

1,025 views / 0 likes - added 8 years ago

Watch the next lesson: https://www.khanacademy.org/math/pre-algebra/applying-math-reasoning-topic/alternate-number-bases/v/binary-multiplication?utm_source=YT&utm_medium=Desc&utm_campaign=PreAlgebra Missed the previous lesson? https://www.khanacademy.org/
03:36 Popular
Approximating Irrational Number Exercise Example | Pre-Algebra | Khan Academy

1,495 views / 0 likes - added 8 years ago

Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/pre-algebra/order-of-operations/rational-irrational-numbers/e/approximating-irrational-numbers?utm_source=YT&utm_medium=Desc&utm_campaign=PreAlgebra Watch the nex
03:00 Popular
Inverse Property Of Addition | Arithmetic Properties | Pre-Algebra | Khan Academy

1,718 views / 0 likes - added 8 years ago

The simple idea that a number plus its negative is 0 Watch the next lesson: https://www.khanacademy.org/math/pre-algebra/order-of-operations/arithmetic_properties/v/inverse-property-of-multiplication?utm_source=YT&utm_medium=Desc&utm_campaign=PreAlgebra M
05:05 Popular
Solving Ratio Problems With Tables Example 1 | Pre-Algebra | Khan Academy

872 views / 0 likes - added 8 years ago

We're displaying ratios in a table format here, and then asking: given a ratio, solve for equivalent ratios. Here are a few examples to practice on. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/pre-algebra/r
06:56 Popular
Exponents And Powers Of Zero Patterns | Pre-Algebra | Khan Academy

1,104 views / 0 likes - added 8 years ago

Now that we understand how to interpret an exponent and how the patterns in zeros are related to the exponent, we can solve more complicated problems! Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/pre-algebra
08:13 Popular
Prime Numbers | Factors And Multiples | Pre-Algebra | Khan Academy

1,159 views / 0 likes - added 8 years ago

What does it mean to be a prime number? Let's progress though some whole numbers and ask ourselves if they meet the criteria. What is the criteria you ask? Watch. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math
05:20 Popular
Order Of Operations: PEMDAS | Arithmetic Properties | Pre-Algebra | Khan Academy

1,841 views / 0 likes - added 8 years ago

Work through another challenging order of operations example with only positive numbers. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/pre-algebra/order-of-operations/order_of_operations/e/order_of_operations
07:34 Popular
Hexadecimal Number System | Applying Mathematical Reasoning | Pre-Algebra | Khan Academy

1,086 views / 0 likes - added 8 years ago

Watch the next lesson: https://www.khanacademy.org/math/pre-algebra/applying-math-reasoning-topic/alternate-number-bases/v/decimal-to-binary?utm_source=YT&utm_medium=Desc&utm_campaign=PreAlgebra Missed the previous lesson? https://www.khanacademy.org/math
07:51 Popular
Volume: How To Measure It | Measurement | Pre-Algebra | Khan Academy

774 views / 0 likes - added 8 years ago

Volume is a measurement in the 3rd dimension. This means that it not only has width and height, but it has depth as well. Let's watch this video in which we get a great explanation of how we measure volume. Practice this lesson yourself on KhanAcademy.org
09:29 Popular
Dividing Decimals With Hundredths Example 3 | Decimals | Pre-Algebra | Khan Academy

1,071 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
03:52 Popular
Converting From Decimal To Binary | Applying Mathematical Reasoning | Pre-Algebra | Khan Academy

1,503 views / 0 likes - added 8 years ago

Watch the next lesson: https://www.khanacademy.org/math/pre-algebra/applying-math-reasoning-topic/alternate-number-bases/v/large-number-decimal-to-binary?utm_source=YT&utm_medium=Desc&utm_campaign=PreAlgebra Missed the previous lesson? https://www.khanaca
08:30 Popular
Multiplying And Dividing Negative Numbers | Pre-Algebra | Khan Academy

1,776 views / 0 likes - added 8 years ago

Multiplying and dividing negative numbers Watch the next lesson: https://www.khanacademy.org/math/arithmetic/absolute-value/abs_value_tutorial/v/absolute-value-and-number-lines?utm_source=YT&utm_medium=Desc&utm_campaign=PreAlgebra Missed the previous less
04:07 Popular
Adding And Subtracting Negative Numbers | Pre-Algebra | Khan Academy

1,323 views / 0 likes - added 8 years ago

Learn how to add and subtract negative numbers. The problems solved in this video are 2 - 3 = -1 and -2 - 3 = -5 and -2 + 3 = 1 and 2 - (-3) = 5 and -2 - (-3). Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/pr
04:31 Popular
Number Patterns: Interpreting Relationships | Pre-Algebra | Khan Academy

1,529 views / 0 likes - added 8 years ago

Examining the points on a number line and interpreting the patterns to discover the relationships. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/pre-algebra/applying-math-reasoning-topic/number-patterns/e/vis
05:34 Popular
Multiplying Positive And Negative Numbers | Pre-Algebra | Khan Academy

1,371 views / 0 likes - added 8 years ago

Learn some rules of thumb for multiplying positive and negative numbers. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/arithmetic/absolute-value/mult_div_negatives/e/multiplying_and_dividing_negative_numbers?
01:34 Popular
Solving Ratio Problems With Graph | Pre-Algebra | Khan Academy

1,874 views / 0 likes - added 8 years ago

In this example we'll plot points on the x and y axis to reflect the given ratios. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/pre-algebra/rates-and-ratios/ratios_and_proportions/e/solving-ratio-problems-wi
04:17 Popular
Introduction To Area And Unit Squares | Measurement | Pre-Algebra | Khan Academy

1,536 views / 0 likes - added 8 years ago

Cover figures with square units to find their area. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/pre-algebra/measurement/area-basics/e/measuring-area-with-unit-squares?utm_source=YT&utm_medium=Desc&utm_campa
03:09 Popular
Simplifying Square Roots | Exponents, Radicals, And Scientific Notation | Pre-Algebra | Khan Academy

1,758 views / 0 likes - added 8 years ago

Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/pre-algebra/exponents-radicals/radical-radicals/e/simplifying_radicals?utm_source=YT&utm_medium=Desc&utm_campaign=PreAlgebra Watch the next lesson: https://www.kh
06:14 Popular
How To Plot Inequalities On A Number Line | Pre-Algebra | Khan Academy

1,515 views / 0 likes - added 8 years ago

Learn how to graph an inequality on a number line to indicate which values make it true. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/pre-algebra/applying-math-reasoning-topic/greater-than-less-than/e/writin
04:16 Popular
Least Common Multiple Exercise | Factors And Multiples | Pre-Algebra | Khan Academy

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

We're practicing finding the least common multiple in these example exercises. We'll teach you the prime factorization approach which is a pretty nifty way to find the lcm (least common multiple). Practice this lesson yourself on KhanAcademy.org right now
03:28 Popular
Inequality Word Problems | Applying Mathematical Reasoning | Pre-Algebra | Khan Academy

1,592 views / 0 likes - added 8 years ago

We're writing inequalities by using information from the word problems. Woohoo! Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/pre-algebra/applying-math-reasoning-topic/greater-than-less-than/e/writing-numeric
08:34 Popular
LCM And GCF Word Problems | Factors And Multiples | Pre-Algebra | Khan Academy

1,785 views / 1 likes - added 8 years ago

Here we have a couple of word problems--one searching for the least common multiple and the other for the greatest common factor. Just read them with us slowly and follow along. You'll get it. Practice this lesson yourself on KhanAcademy.org right now: ht
03:38 Popular
Math Patterns Example 1 | Applying Mathematical Reasoning | Pre-Algebra | Khan Academy

710 views / 0 likes - added 8 years ago

Part of our exploration of math is learning to identify patterns among numbers. Can you see the pattern in this example? Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/exercise/math-patterns?utm_source=YT&utm_mediu
05:41 Popular
Math Patterns Example 2 | Applying Mathematical Reasoning | Pre-Algebra | Khan Academy

703 views / 0 likes - added 8 years ago

We continue to strengthen our skill in identifying patterns. This time we'll use a table to track the pattern. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/exercise/math-patterns?utm_source=YT&utm_medium=Desc&utm
02:36 Popular
Number Patterns: Seeing Relationships | Applying Mathematical Reasoning | Pre-Algebra | Khan Academy

1,022 views / 0 likes - added 8 years ago

Laying the foundation for algebraic thinking by learning to recognize the relationships between patterns and graphing out those relationships. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/pre-algebra/applyin
06:20 Popular
Greatest Common Factor Explained | Factors And Multiples | Pre-Algebra | Khan Academy

1,164 views / 0 likes - added 8 years ago

Here's a nice explanation of least common factor (or least common divisor) along with a few practice example exercises. Let's roll. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/pre-algebra/factors-multiples/
06:29 Popular
Multiplying Decimals: Place Value And Reordering | Decimals | Pre-Algebra | Khan Academy

1,377 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/
09:43 Popular
Exponent Rules Part 1 | Exponents, Radicals, And Scientific Notation | Pre-Algebra | Khan Academy

1,575 views / 0 likes - added 8 years ago

Introduction to exponent rules Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/pre-algebra/exponents-radicals/exponent-properties/e/exponent_rules?utm_source=YT&utm_medium=Desc&utm_campaign=PreAlgebra Watch the
00:52 Popular
Reading Bar Charts: Basic Example | Applying Mathematical Reasoning | Pre-Algebra | Khan Academy

1,365 views / 0 likes - added 8 years ago

Let's start with this bar chart that brings back the days of Harry Potter! Putting our toes in the water on this one... Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/pre-algebra/applying-math-reasoning-topic/
02:27 Popular
Inequality Word Problem: One Variable | Applying Mathematical Reasoning | Pre-Algebra | Khan Academy

1,032 views / 0 likes - added 8 years ago

This time we're creating a variable to represent a number, and then writing an inequality. We're building on our knowledge. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/pre-algebra/applying-math-reasoning-to
01:11 Popular
Subtracting Decimals: Example 1 | Decimals | Pre-Algebra | Khan Academy

1,081 views / 0 likes - added 8 years ago

Subtracting decimals...up to the hundredths placement. Line up those decimals before you start. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/pre-algebra/decimals-pre-alg/adding-decimals-pre-alg/e/subtracting
02:39 Popular
Comparing Decimals: Ordering From Least To Greatest | Decimals | Pre-Algebra | Khan Academy

1,882 views / 0 likes - added 8 years ago

This is a fun example where we reorder decimals from smallest to largest. You're looking for the place value that is the most significant, and then working backwards. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/
03:50 Popular
Introduction To Multiplying Decimals | Decimals | Pre-Algebra | Khan Academy

1,165 views / 0 likes - added 8 years ago

Multiplying decimals can be confusing because there's always the question as to where the decimals goes in the answer. We're about to show you so you'll never have to question it again! Practice this lesson yourself on KhanAcademy.org right now: https://w
04:20 Popular
Dividing A Whole Number By A Decimal | Decimals | Pre-Algebra | Khan Academy

1,696 views / 1 likes - added 8 years ago

When dividing a whole number by a decimal, you're going to need to change that decimal into a whole number. How? We'll show you. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/pre-algebra/decimals-pre-alg/divi
04:25 Popular
Multiplying Challenging Decimals | Decimals | Pre-Algebra | Khan Academy

955 views / 0 likes - added 8 years ago

Sometimes multiplying really small decimals (with all those zeros!) can be a little intimidating. Watch as we show you a handy trick to simplify these problems and solve them. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanaca
01:47 Popular
Decompose Hundredths On Number Line | Fractions | 4th Grade | Khan Academy

1,567 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
02:36 Popular
Converting Decimals To Percents | Decimals | Pre-Algebra | Khan Academy

1,467 views / 0 likes - added 8 years ago

Need to convert a decimal to a percent? Ok, we'll just use our fraction friends to get us there. Watch and be amazed. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/pre-algebra/decimals-pre-alg/percent-intro-p
04:51 Popular
Cube Root Of A Non-perfect Cube | Pre-Algebra | Khan Academy

1,262 views / 0 likes - added 8 years ago

Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/pre-algebra/exponents-radicals/cube-root-tutorial/e/cube_roots?utm_source=YT&utm_medium=Desc&utm_campaign=PreAlgebra Watch the next lesson: https://www.khanacadem
09:45 Popular
Simplifying Radicals | Exponents, Radicals, And Scientific Notation | Pre-Algebra | Khan Academy

1,515 views / 1 likes - added 8 years ago

Using exponent rules to simplify radicals or square roots Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/pre-algebra/exponents-radicals/radical-radicals/e/simplifying_radicals?utm_source=YT&utm_medium=Desc&utm
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Negative Exponents | Exponents, Radicals, And Scientific Notation | Pre-Algebra | Khan Academy

1,563 views / 0 likes - added 8 years ago

How does a negative exponent affect our answer? Before you assume that the answer must be negative, think again! Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/pre-algebra/exponents-radicals/negative-exponents
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Negative Numbers Introduction | Negative Numbers And Absolute Value | Pre-Algebra | Khan Academy

2,152 views / 0 likes - added 8 years ago

Mysterious negative numbers! What ARE they? They are numbers less than zero. If you understand the nature of below zero temperatures, you can understand negative numbers. We'll help. Practice this lesson yourself on KhanAcademy.org right now: https://www.
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1,627 views / 1 likes - added 8 years ago

To find the factors of a number means to find all the whole numbers that the number in question is divisible by. Can you help us find the factors in this example? Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math
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1,790 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-
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1,694 views / 0 likes - added 8 years ago

Learn what variables, expressions, and equations really are. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/algebra/introduction-to-algebra/feel-for-equations-and-inequalit/e/dependent-and-independent-variable
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999 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
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Visually Understanding Multiplying Fractions And Whole Numbers

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940 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/
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1,140 views / 0 likes - added 8 years ago

Where did the word "Algebra" and its underlying ideas come from? Watch the next lesson: https://www.khanacademy.org/math/algebra/introduction-to-algebra/overview_hist_alg/v/abstract-ness?utm_source=YT&utm_medium=Desc&utm_campaign=AlgebraI Algebra I on Kha
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956 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
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Abstract-ness | Introduction To Algebra | Algebra I | Khan Academy

633 views / 0 likes - added 8 years ago

The general idea behind the word 'abstract' Watch the next lesson: https://www.khanacademy.org/math/algebra/introduction-to-algebra/overview_hist_alg/v/the-beauty-of-algebra?utm_source=YT&utm_medium=Desc&utm_campaign=AlgebraI Missed the previous lesson? h
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Fractions 4: Our First Two Beliefs about Fractions

310 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!"
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Fractions 9: Comparing Fractions

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This is the ninth in a series of videos on "FRACTIONS For All Those Who Never Really Got Them and Want to Get Them!"
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1,812 views / 2 likes - added 8 years ago

Introduction to multiplication Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/arithmetic/multiplication-division/multiplication_fun/e/multiplication_0.5?utm_source=YT&utm_medium=Desc&utm_campaign=Arithmetic Wa
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1,482 views / 0 likes - added 8 years ago

Positive and negative slope Watch the next lesson: https://www.khanacademy.org/math/algebra/two-var-linear-equations-and-intro-to-functions/slope/v/similar-triangles-to-prove-that-the-slope-is-constant-for-a-line?utm_source=YT&utm_medium=Desc&utm_campaign
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1,135 views / 0 likes - added 8 years ago

Marbles and water in tank Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/algebra/two-var-linear-equations-and-intro-to-functions/linear-functions-modeling/e/constructing-and-interpreting-linear-functions?utm_s
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1,960 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
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1,978 views / 0 likes - added 8 years ago

Introduction to 2-variable linear equations and their graphs Watch the next lesson: https://www.khanacademy.org/math/algebra/two-var-linear-equations-and-intro-to-functions/solutions-to-two-var-linear-equations/v/checking-ordered-pair-solutions-to-equatio
01:46 $Visualizing division by fractions$
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681 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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Linear Models Example 1 | Algebra I | Khan Academy

1,850 views / 0 likes - added 8 years ago

Linear model for book reading Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/algebra/two-var-linear-equations-and-intro-to-functions/linear-functions-modeling/e/constructing-and-interpreting-linear-functions?u
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1,070 views / 0 likes - added 8 years ago

Sal finds the input value for which g(x)=-2 given the graph of g. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/algebra/algebra-functions/function-inputs-and-outputs/e/functions_matching_inputs_outputs?utm_so
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1,002 views / 0 likes - added 8 years ago

Sal finds the input value for which f(t)=13, given that f(t)=-2t+5. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/algebra/algebra-functions/function-inputs-and-outputs/e/functions_matching_inputs_outputs?utm_
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900 views / 0 likes - added 8 years ago

Sal find the formula of a function that, given an input value "b," outputs a value "a" that satisfies the equation 4a+7b=-52. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/algebra/algebra-functions/functions-
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1,415 views / 0 likes - added 8 years ago

Sal interprets the expression M(30)-M(0)=100 where M models an account balance over time. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/algebra/algebra-functions/interpreting-function-notation/e/function-nota
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2,177 views / 0 likes - added 8 years ago

Interpreting a linear formula Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/algebra/two-var-linear-equations-and-intro-to-functions/interpreting_linear_functions/e/interpreting-features-of-linear-functions?ut
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1,956 views / 0 likes - added 8 years ago

Sal interprets the expression P(5) minor P(9) where P models the number of people at the beach over time. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/algebra/algebra-functions/interpreting-function-notation
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1,414 views / 0 likes - added 8 years ago

Linear equation for file transfer Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/algebra/two-var-linear-equations-and-intro-to-functions/interpreting_linear_functions/e/interpreting-features-of-linear-function
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1,884 views / 0 likes - added 8 years ago

Graphing equation for filling pool Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/algebra/two-var-linear-equations-and-intro-to-functions/linear-functions-modeling/e/graphing-linear-functions-word-problems?utm
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1,714 views / 0 likes - added 8 years ago

Linear model for ice sheet thickness Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/algebra/two-var-linear-equations-and-intro-to-functions/linear-functions-modeling/e/constructing-linear-functions-word-proble
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Early Train Word Problem | Linear Equations | Algebra I | Khan Academy

869 views / 0 likes - added 8 years ago

Fun word problem that is almost a brain teaser. Watch the next lesson: https://www.khanacademy.org/math/algebra/solving-linear-equations-and-inequalities/More-equation-practice/v/patterns-in-sequences-1?utm_source=YT&utm_medium=Desc&utm_campaign=AlgebraI
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1,807 views / 0 likes - added 8 years ago

Learn how graph a linear function. This video gives an example of graphing fuel consumption as a function of distance. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/algebra/two-var-linear-equations-and-intro-
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1,306 views / 0 likes - added 8 years ago

Converting from slope-intercept to standard form Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/algebra/two-var-linear-equations-and-intro-to-functions/standard-form/e/converting_between_slope_intercept_and_st
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1,043 views / 0 likes - added 8 years ago

Second example of ordered pair solutions Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/algebra/two-var-linear-equations-and-intro-to-functions/solutions-to-two-var-linear-equations/e/plugging_in_values?utm_so
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1,254 views / 0 likes - added 8 years ago

Checking ordered pair solutions to equations Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/algebra/two-var-linear-equations-and-intro-to-functions/solutions-to-two-var-linear-equations/e/plugging_in_values?ut
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1,979 views / 0 likes - added 8 years ago

Graphing solutions to 2 variable linear equations Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/algebra/two-var-linear-equations-and-intro-to-functions/solutions-to-two-var-linear-equations/e/graphing-solutio
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1,379 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
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991 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
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979 views / 0 likes - added 8 years ago

Learn how to subtract 4 from 46 by thinking about place value. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/early-math/cc-early-math-add-sub-100/cc-early-math-sub-ones-tens/e/subtract-with-in-100-level-1?utm
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896 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!
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1,015 views / 0 likes - added 8 years ago

Learn how to add 37 + 2 by thinking about place value. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/early-math/cc-early-math-add-sub-100/cc-early-math-add-ones-tens/e/add-within-100--level-1?utm_source=YT&ut
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926 views / 0 likes - added 8 years ago

Learn how to subtract 40 from 65 by thinking about place value. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/early-math/cc-early-math-add-sub-100/cc-early-math-sub-ones-tens/e/subtract-with-in-100-level-1?ut
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Understanding Place Value While Adding Tens | Early Math | Khan Academy

614 views / 0 likes - added 8 years ago

Learn how to add 23 + 30 by thinking about place value. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/early-math/cc-early-math-add-sub-100/cc-early-math-add-ones-tens/e/add-within-100--level-1?utm_source=YT&u
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859 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
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715 views / 0 likes - added 8 years ago

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806 views / 0 likes - added 8 years ago

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285 views / 0 likes - added 3 years ago

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866 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
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Fractions 2: The Pies-per-Student Model

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1,701 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
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524 views / 0 likes - added 9 years ago

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675 views / 0 likes - added 9 years ago

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543 views / 0 likes - added 9 years ago

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Visually Subtracting Fractions With Unlike Denominators

526 views / 0 likes - added 8 years ago

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Visually Adding Fractions With Unlike Denominators

605 views / 0 likes - added 8 years ago

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Multiplying Fractions By Whole Numbers On The Number Line

664 views / 0 likes - added 8 years ago

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Fractions 7: The Key Fraction Belief

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02:33 $Adding fractions (ex 1)$
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640 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 $Converting mixed numbers and improper fractions (ex 2)$
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02:06 $Converting mixed numbers and improper fractions (ex 1)$
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965 views / 0 likes - added 8 years ago

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Visually Converting From Tenths To Hundredths | 4th Grade | Khan Academy

1,170 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
04:51
Equivalent Fractions Example

687 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
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Multiplying Fractions

655 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
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Dividing Fractions Example

501 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
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Subtracting Fractions

568 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

514 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
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Comparing Fractions 2

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Proper and Improper Fractions

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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
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Fractions in lowest terms

436 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
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Adding Fractions with Like Denominators

637 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
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Converting Fractions to Decimals Example

678 views / 0 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
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Unit Conversion with Fractions

418 views / 0 likes - added 9 years ago

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Decomposing Hundredths Into Tenths And Hundredths | 4th Grade | Khan Academy

1,469 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
06:22 $Adding fractions with different signs$
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535 views / 0 likes - added 9 years ago

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Multiplying Fractions and Mixed Numbers

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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
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Multiplying Fractions Word Problem

626 views / 0 likes - added 9 years ago

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Dividing Mixed Numbers and Fractions

793 views / 0 likes - added 9 years ago

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Dividing Fractions Word Problem

550 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
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Adding Fractions with Unlike Denominators

530 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

622 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
07:36 Popular
Fractions - Adding and Subtracting

723 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

839 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
06:55 Popular
Place Value For Decimals Greater Than One (examples) | 4th Grade | Khan Academy

1,149 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
01:31 Popular
Filling Rectangles With Squares | Geometry | Early Math | Khan Academy

1,165 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?
01:49 Popular
How To Find Two Function Inputs With The Same Output Given Graph (example) | Khan Academy

1,787 views / 0 likes - added 8 years ago

Sal finds the input value other than -5 for which f(x)=f(-5), given the graph of f. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/algebra/algebra-functions/function-inputs-and-outputs/e/functions_matching_inp
08:26
Conjugate acid-base pairs | Acids and bases | Chemistry | Khan Academy

578 views / 0 likes - added 6 years ago

Introduction to conjugate acid-base pairs. Definition and examples of conjugate acid-base pairs. Chemistry on Khan Academy: Did you know that everything is made out of chemicals? Chemistry is the study of matter: its composition, properties, and reactivit
07:37
Introduction to reaction quotient Qc | Chemical equilibrium | Chemistry | Khan Academy

644 views / 0 likes - added 6 years ago

Introduction to the reaction quotient Qc, and how to use the reaction quotient to predict how the reaction concentrations will change. Chemistry on Khan Academy: Did you know that everything is made out of chemicals? Chemistry is the study of matter: its
04:32
The Zeroth Power | Arithmetic Operations | 6th Grade | Khan Academy

603 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
07:40 Popular
Comparing Numbers Represented In Different Ways | 4th Grade | Khan Academy

742 views / 0 likes - added 8 years ago

Examples of Khan Academy practice problems where you compare decimals, fractions, and number diagrams. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/cc-fourth-grade-math/cc-4th-decimals/cc-4th-compare-decimal
02:25 Popular
Halves And Fourths | Geometry | Early Math | Khan Academy

779 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
03:05 Popular
Simplifying Complex Fractions - Ex 1

1,023 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
06:47 Popular
Noble Gas Configuration | Electronic Structure Of Atoms | Chemistry | Khan Academy

1,482 views / 0 likes - added 8 years ago

How to write electron configurations for atoms and monatomic ions using noble gas configuration Chemistry on Khan Academy: Did you know that everything is made out of chemicals? Chemistry is the study of matter: its composition, properties, and reactivity
07:57 Popular
Le Chatelier's principle: Worked example | Chemical equilibrium | Chemistry | Khan Academy

933 views / 0 likes - added 6 years ago

A worked example using Le Chatelier's principle to predict how concentrations will shift for different perturbations. Example includes changes in reaction vessel volume, changing amount of solid product, adding inert gas, and adding a catalyst. Chemistry
04:37 Popular
Fraction-decimal Intuition Problems (examples) | 4th Grade | Khan Academy

1,021 views / 0 likes - added 8 years ago

Understand the connection between decimals and fractions using a grid diagram. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/cc-fourth-grade-math/cc-4th-decimals/cc-4th-decimal-fractions/e/fraction-decimal-in
03:29 Popular
Basic Math: Dividing Fractions

1,123 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
05:15 Popular
Thinking About The Changing Values Of Variables And Expressions | 6th Grade | Khan Academy

831 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
03:05 Popular
Equal Parts Of Circles And Rectangles | Geometry | Early Math | Khan Academy

1,352 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
01:34
Fractions on the number line 1 (ex 1)

597 views / 0 likes - added 9 years ago

Fractions on the number line 1 (ex 1)
06:52 Popular
Introduction To Partial Pressure | Gases And Kinetic Molecular Theory | Chemistry | Khan Academy

1,586 views / 0 likes - added 7 years ago

Definition of partial pressure and Dalton's law of partial pressure. Example of calculating partial pressure of a gas in a mixture from the total pressure and partial pressure of the other gases in the mixture. Chemistry on Khan Academy: Did you know that
04:34
What is a sentence? | Syntax | Khan Academy

553 views / 0 likes - added 6 years ago

A sentence is a grammatically complete idea. All sentences have a noun or pronoun component called the subject, and a verb part called the predicate. David and Paige explore this division across several different example sentences. Watch the next lesson:
07:14 Popular
Calculating internal energy and work example | Chemistry | Khan Academy

1,082 views / 0 likes - added 6 years ago

Worked example calculating the change in internal energy for a gas using the first law of thermodynamics. Watch the next lesson: https://www.khanacademy.org/science/chemistry/thermodynamics-chemistry/internal-energy-sal/v/specific-heat-and-latent-leat-of-
07:50 Popular
pH and pKa relationship for buffers | Chemistry | Khan Academy

823 views / 0 likes - added 6 years ago

How the Henderson-Hasselbalch equation can be used to look at the ratio of conjugate acid and base using relationship between buffer pH and pKa. Watch the next lesson: https://www.khanacademy.org/science/chemistry/acid-base-equilibrium/buffer-solutions/v/
03:29 Popular
Comparing Decimals Example 1 | Decimals | 4th Grade | Khan Academy

1,484 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
06:13 Popular
Rate constant k from half-life example | Knetics | Chemistry | Khan Academy

916 views / 0 likes - added 6 years ago

Example problem showing how to find the rate constant k from the half-life of a first order reaction. Watch the next lesson: https://www.khanacademy.org/science/chemistry/chem-kinetics/copy-of-kinetics/v/second-order-reaction-with-calculus?utm_source=YT&u
05:53
Comparing Q vs K example | Chemical equilibrium | Chemistry | Khan Academy

569 views / 0 likes - added 6 years ago

A worked example using reaction quotient Q to predict how concentrations will shift so the reaction can get to equilibrium. Watch the next lesson: https://www.khanacademy.org/science/chemistry/acids-and-bases-topic/acids-and-bases/v/arrhenius-definition-o
07:33 Popular
Ways to get a buffer solution | Chemistry | Khan Academy

1,239 views / 0 likes - added 6 years ago

Describes the two main situations where you get a buffer: making a buffer for a specific pH by combining a weak acid and a salt containing the conjugate base, and using a neutralization reaction by combining a weak acid and a strong base. Watch the next l
07:43 Popular
Basic Addition | Addition And Subtraction | Arithmetic | Khan Academy

1,279 views / 1 likes - added 8 years ago

Introduction to addition. Multiple visual ways to represent addition. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/arithmetic/addition-subtraction/basic_addition/e/addition_1?utm_source=YT&utm_medium=Desc&ut
02:19 Popular
How To Determine The Domain Of A Modeling Function (example With A Function) | Khan Academy

1,255 views / 0 likes - added 8 years ago

Sal determines the domain of a function that models the height of a plant over time. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/algebra/algebra-functions/determining-the-domain-of-a-function/e/interpreting
06:29 Popular
How To Use The Distributive Property With Variables | 6th Grade | Khan Academy

1,281 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
02:37 Popular
How To Write Basic Expressions With Variables | 6th Grade | Khan Academy

840 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
04:08 Popular
Plotting Decimal Numbers On A Number Line (examples) | Khan Academy

897 views / 0 likes - added 8 years ago

Learn how to find decimals 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-decimals/cc-4th-decimals-number-line/e/decimals_on_the_number_line_2?utm_
04:05 Popular
How To Find Mistakes In One Step Equations | 6th Grade | Khan Academy

746 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
02:38 Popular
Graphing Linear Equations — Harder Example | Math | New SAT | Khan Academy

892 views / 0 likes - added 8 years ago

Watch Sal work through a harder Graphing linear equations problem. Watch the next lesson: https://www.khanacademy.org/test-prep/new-sat/new-sat-math/new-sat-heart-of-algebra/v/sat-math-h3-easier?utm_source=YT&utm_medium=Desc&utm_campaign=NewSAT Missed the
02:54 Popular
How To Describe Real-world Situations With Inequalities | 6th Grade | Khan Academy

1,148 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
02:04 Popular
Compose Shapes | Geometry | Early Math | Khan Academy

769 views / 0 likes - added 8 years ago

Learn how to combine shapes to make other shapes. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/early-math/cc-early-math-geometry-topic/cc-early-math-composing-shapes/e/compose-shapes?utm_source=YT&utm_medium
03:59 Popular
Meet the Comma | Punctuation | Grammar | Khan Academy

897 views / 1 likes - added 6 years ago

David and Paige introduce you to the superhero of the punctuation world: the comma! Practice this yourself on Khan Academy right now: . Practice this yourself on Khan Academy right now: https://www.khanacademy.org/humanities/grammar/punctuation/the-comma/
02:55 Popular
Linear Equation Word Problems — Basic Example | Math | New SAT | Khan Academy

1,213 views / 0 likes - added 8 years ago

Watch Sal work through a basic Linear equations word problem. Watch the next lesson: https://www.khanacademy.org/test-prep/new-sat/new-sat-math/new-sat-heart-of-algebra/v/sat-math-h2-easier?utm_source=YT&utm_medium=Desc&utm_campaign=NewSAT Missed the prev

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