6, Lesson 25, Unit 4, Grade 1, EngageNY icon
Problem Set

Problem Set

Lesson 25. Unit 4. Grade 1 EngageNY

EngageNY10 min(s)

This Problem Set is a part of the Lesson 25, Unit 4, Grade 1. In this lesson, students continue adding sets of two-digit numbers, where the ones digits produce a sum less than or equal to 10. Rather than always adding tens first (as in the last lesson), they now practice adding ones to the first addend and then adding the remaining ten. For example, when adding 17 + 13, students decompose 13 into 10 and 3.

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