6, Lesson 23, Unit 1, Grade 1, EngageNY icon
Problem Set

Problem Set

Lesson 23. Unit 1. Grade 1 EngageNY

EngageNY15 min(s)

This Problem Set is a part of the Lesson 23, Unit 1, Grade 1. In this lesson, students continue exploring patterns among familiar facts on the addition chart. They examine patterns in expressions where the totals are the same. For example, given the sequence 5 + 5, 4 + 6, 3 + 7, 2 + 8, and 9 + 1, which forms a "staircase" on the addition chart, they notice that the total is 10 each time.

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