SOLUTION: Use the properties of addition and multiplication to complete the statement. (9 + 17) + 20 = 9 + ( ____ + 20)

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Question 84997: Use the properties of addition and multiplication to complete the statement. (9 + 17) + 20 = 9 + ( ____ + 20)
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(9 + 17) + 20 = 9 + ( 17 + 20)
Associative property of addition. The order in which the terms are added does not change the answer.