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7th Grade Unit 3 Lesson 1 Commutative and Associative property Demonstrating Mastery M.7.EE.1 • Apply properties of operations as strategies to add, subtract, factor and expand linear expressions with rational coefficients. (CCSS Math.7.EE.1) Problem Using what you know about the properties explain which equation is Commutative or Associative • X+Y=Y+X • 5x4=4x5 A (B x C) = (A x B) C 2 (4 x 7) = (2 x 7) 4 Solution • • • • Commutative Property: Associative Property: To go back and forth Change associates X+Y=Y+X A (B x C)= (A x B) C 5x4=4x5 2 (4 x 7) = (2 x 7) 4
