Unit 4, Lesson 4, Grade 1 icon
Unit 4, Lesson 4

Write and interpret two-digit numbers as addition sentences that combine tens and ones.

EngageNY 60 min(s)

This lesson asks students to decompose and compose two-digit numbers as addition equations. Students develop an understanding that "34 is the same as 30 + 4" as they move between writing the number when given the equations and writing the equations when given a number.

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