Lesson: Checking Two-Digit Subtraction Problems by Adding Mathematics • 2nd Grade

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In this lesson, we will learn how to use addition to check subtraction and identify the related addition equation that can be solved to check the answer.

Lesson Plan

Students will be able to

  • use models to find the related addition for a subtraction problem,
  • write an addition sentence to check the solution to a subtraction problem,
  • check answers to subtraction word problems using addition.

Lesson Video

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11:02

Lesson Playlist

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