5, Lesson 21, Unit 2, Grade 1, EngageNY icon
Problem Set

Problem Set

Lesson 21. Unit 2. Grade 1 EngageNY

EngageNY10 min(s)

This Problem Set is a part of the Lesson 21, Unit 2, Grade 1. In this lesson, students discuss solution strategies as they solve "take from with result unknown" and "take apart with addend unknown" word problems. (For example, "Colby is reading a book that is 14 pages long. She has already read 8 pages.

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