Unit 4, Lesson 13

Use counting on and the make ten strategy when adding across a ten.

EngageNY 60 min(s)
In this lesson, students apply the strategies of counting on and making ten to larger numbers, making a ten that is built on a structure of other tens. They use linking cubes as a concrete representation of the numbers, write a matching number sentence, and write the total in a place-value chart. As they add cubes, students see that sometimes a new ten can be made (for example, 33 + 7 = 40, or 4 tens).

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