Unit 6, Lesson 18, Grade 1 icon
Unit 6, Lesson 18

Add a pair of two-digit numbers with varied sums in the ones, and compare the results of different recording methods.

EngageNY 60 min(s)

In this lesson, students add a pair of two-digit numbers, such as 36 + 57, in more than one way, explaining the similarities and differences in the methods. They recognize that they can achieve the same accurate sum through the varied strategies, as they decompose and recompose tens and ones.

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