# Missing Number For Addition And Subtraction Within 1000 | 3th Grade | Khan Academy

Thanks! Share it with your friends!

URL

Sorry, only registred users can create playlists.

## Description

Learn how to solve missing number problems like ___ + 261 = 630.

Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/cc-third-grade-math/cc-3rd-add-sub-topic/cc-3rd-add-sub-missing-value/e/find-the-missing-number--addition-and-subtraction-within-1000-?utm_source=YT&utm_medium=Desc&utm_campaign=3thgrade

Watch the next lesson: https://www.khanacademy.org/math/cc-third-grade-math/cc-3rd-mult-div-topic/cc-3rd-mult/v/multiplication-intro?utm_source=YT&utm_medium=Desc&utm_campaign=3thgrade

Missed the previous lesson? https://www.khanacademy.org/math/cc-third-grade-math/cc-3rd-add-sub-topic/cc-3rd-regrouping-3-dig/v/mental-technique-for-subtraction-without-regrouping?utm_source=YT&utm_medium=Desc&utm_campaign=3thgrade

Grade 3th on Khan Academy: We know you've been rocking through 2nd grade adding and subtracting all kinds of whole numbers (up to 2 digits, right?). That's awesome! In 3rd grade math we want you to start using bigger numbers and start multiplying and dividing, too. By the way, did you know that some numbers aren’t actually “whole?” They’re “partially whole.” We call them fractions! We want you to start playing around and having fun with those, too. There's also area, perimeter, and place value to be discovered. Whew. We have so much to do and can't wait to do it with you. Let's go!

About Khan Academy: Khan Academy offers practice exercises, instructional videos, and a personalized learning dashboard that empower learners to study at their own pace in and outside of the classroom. We tackle math, science, computer programming, history, art history, economics, and more. Our math missions guide learners from kindergarten to calculus using state-of-the-art, adaptive technology that identifies strengths and learning gaps. We've also partnered with institutions like NASA, The Museum of Modern Art, The California Academy of Sciences, and MIT to offer specialized content.

For free. For everyone. Forever. #YouCanLearnAnything

Subscribe to Khan Academy’s 3th grade channel:

https://www.youtube.com/channel/UCwRBaZv81l-p3Ch2xR0otwg?sub_confirmation=1

Subscribe to Khan Academy: https://www.youtube.com/subscription_center?add_user=khanacademy

Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/cc-third-grade-math/cc-3rd-add-sub-topic/cc-3rd-add-sub-missing-value/e/find-the-missing-number--addition-and-subtraction-within-1000-?utm_source=YT&utm_medium=Desc&utm_campaign=3thgrade

Watch the next lesson: https://www.khanacademy.org/math/cc-third-grade-math/cc-3rd-mult-div-topic/cc-3rd-mult/v/multiplication-intro?utm_source=YT&utm_medium=Desc&utm_campaign=3thgrade

Missed the previous lesson? https://www.khanacademy.org/math/cc-third-grade-math/cc-3rd-add-sub-topic/cc-3rd-regrouping-3-dig/v/mental-technique-for-subtraction-without-regrouping?utm_source=YT&utm_medium=Desc&utm_campaign=3thgrade

Grade 3th on Khan Academy: We know you've been rocking through 2nd grade adding and subtracting all kinds of whole numbers (up to 2 digits, right?). That's awesome! In 3rd grade math we want you to start using bigger numbers and start multiplying and dividing, too. By the way, did you know that some numbers aren’t actually “whole?” They’re “partially whole.” We call them fractions! We want you to start playing around and having fun with those, too. There's also area, perimeter, and place value to be discovered. Whew. We have so much to do and can't wait to do it with you. Let's go!

About Khan Academy: Khan Academy offers practice exercises, instructional videos, and a personalized learning dashboard that empower learners to study at their own pace in and outside of the classroom. We tackle math, science, computer programming, history, art history, economics, and more. Our math missions guide learners from kindergarten to calculus using state-of-the-art, adaptive technology that identifies strengths and learning gaps. We've also partnered with institutions like NASA, The Museum of Modern Art, The California Academy of Sciences, and MIT to offer specialized content.

For free. For everyone. Forever. #YouCanLearnAnything

Subscribe to Khan Academy’s 3th grade channel:

https://www.youtube.com/channel/UCwRBaZv81l-p3Ch2xR0otwg?sub_confirmation=1

Subscribe to Khan Academy: https://www.youtube.com/subscription_center?add_user=khanacademy

## Post your comment

## Comments

Be the first to comment