6, Lesson 39, Unit 1, Grade 1, EngageNY icon
Problem Set

Problem Set

Lesson 39. Unit 1. Grade 1 EngageNY

EngageNY10 min(s)

This Problem Set is a part of the Lesson 39, Unit 1, Grade 1. In this lesson, students apply their knowledge of addition and subtraction to write groups of four related addition and subtraction equations. For example, given the expression 5 + 2, students write the addition equations 5 + 2 = 7 and 2 + 5 = 7, and then write the related subtraction equations 7 - 5 = 2 and 7 - 2 = 5.

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