Apply the associative property to add and subtract three numbers within 20

Apply the associative property to add and subtract three numbers within 20 Math Game

Purpose

In this multi-step exercise, students discover how to add three numbers within 20 by applying the associative property of addition.

Standards Addressed

Standards Body Codes
CCSS-M 1.OA.B.3mb
NCTM PK2.A.B.4
TEKS 1.5G

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