SOLUTION: 3+(7+8)=(?+?)+? what is the answer and what property is this.

SOLUTION: 3+(7+8)=(?+?)+? what is the answer and what property is this.

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Question 199601: 3+(7+8)=(?+?)+? what is the answer and what property is this.
Answer by vleith(2983) (Show Source): You can put this solution on YOUR website!
3+(7+8)=(?+?)+?
3+(7+8)=(3+7)+8
Associative property for addition
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