Activity 6, Lesson 27, Unit 1, Grade 1 icon
Problem Set

Problem Set

Lesson 27. Unit 1. Grade 1 EngageNY

EngageNY10 min(s)

This Problem Set is a part of the Lesson 27, Unit 1, Grade 1. In this lesson, students continue relating counting on to subtraction. They use a number path to solve related addition and subtraction problems by finding one part, counting on to the total, and determining the number of counts it took to get to that total from the part. For example, they relate the number sentences 9 - 8 = ___ and 8 + ___ = 9.

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