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Lesson: Adding Ones to Two-Digit Numbers on a Number Line Mathematics • 1st Grade

In this lesson, we will learn how to add a one-digit number to a two-digit number when crossing a ten by modeling two jumps on a number line.

Lesson Plan

Students will be able to

  • identify when a sum will cross a ten,
  • decompose ones to add when crossing a ten,
  • solve word problems using an open number line.

Lesson Playlist

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