Use the Associative Property to Subtract

Examples, solutions, and videos to help Grade 2 students learn how to use the associative property to subtract from three-digit numbers and verify solutions with addition.

Common Core Standards: 2.NBT.7, 2.NBT.8, 2.NBT.9

New York State Common Core Math Grade 2, Module 5, Lesson 6

Worksheets for Grade 2

NYS Math Grade 2 Module 5 Lesson 6

Lesson 6 Homework

1. Draw and label a tape diagram to show how to simplify the problem. Write the new number sentence, and then subtract.
   b. 420 – 190 = ___ = ____
   d. 650 – 280 = ___= ____
2. Draw and label a tape diagram to show how to simplify the problem. Write a new number sentence, and then subtract. Check your work using addition.
   c. 442 – 298 = ____ = ____
   d. 718 – 390 = ____ = ____
   

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