brandy0299 brandy0299

22-08-2018
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kelly0922r kelly0922r

23-08-2018

4. Commutative

5. Commutative

6. Associative

7. Associative

8. Commutative

9. changing the order of the factors does not change the answer

10. changing the way the addends are grouped within the parentheses does not change the answer

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