5, Lesson 20, Unit 5, Grade 2, EngageNY icon
Problem Set

Problem Set

Lesson 20. Unit 5. Grade 2 EngageNY

EngageNY10 min(s)

This Problem Set is a part of the Lesson 20, Unit 5, Grade 2.<br> In this lesson, students synthesize their understanding of addition and subtraction strategies to solve problems. They use that understanding to determine which of those strategies to apply to a variety of problems, including number-bond problems and problems with the unknown in all positions. Students then discuss and analyze their chosen methods and determine which method is most efficient for the given problem type.

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