Khan Academy
Khan Academy: Breaking Apart Two Digit Addition Problems
In this exercise, students practice breaking apart two-digit addition problems. Students receive immediate feedback and have the opportunity to get hints and try questions repeatedly.
Khan Academy
Khan Academy: Break Apart 2 Digit Addition Problems
Practice breaking apart problems like 23+45 into problems like 20+40+3+5. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Other
Nearpod: Subtraction With Regrouping: Three Digit
In this lesson on subtraction, students will use the break apart strategy, draw a model, or the standard algorithm to subtract 3-digit numbers.
Other
Nearpod: Subtraction With Regrouping: Two Digit
In this lesson on subtraction, students will use the break apart strategy, draw a model, or the standard algorithm to subtract 2-digit numbers.
University of Colorado
University of Colorado: Ph Et Interactive Simulations: Make a Ten
An interactive simulation that teaches about place value, addition, and subtraction by adding, breaking apart, and combining numbers by making tens and focusing on place value. This simulation can either be downloaded or played online...
Khan Academy
Khan Academy: Adding 53+17 by Making a Group of 10
Sal adds 53+17 by breaking apart the numbers and making a group of 10. [3:35]
ClassFlow
Class Flow: Breaking 10 Apart
[Free Registration/Login Required] This is an interactive lesson that encourages students to move around. It focuses on the students being able to recognize that numbers are the same even if you break them apart into groups. This lesson...
Khan Academy
Khan Academy: 2 Digit Place Value Challenge
Practice breaking numbers apart into tens and ones. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Khan Academy
Khan Academy: 2 Digit Place Value Challenge
Practice breaking numbers apart into tens and ones.
K-5 Math Teaching Resources
K 5 Math Teaching Resources: Division Strategy: Partition the Dividend [Pdf]
Break numbers apart as a strategy to divide.