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Which property would allow you to use mental computation to simplify the problem 23 + (7 + 9)?

Which property would allow you to use mental computation to simplify the problem 23 + (7 + 9)?
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Which property would allow you to use mental computation to simplify the problem 23 + (7 + 9)?

User Interrobang
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1 Answer

6 votes
associative property of addition
User Maksym Strukov
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