need help on this review question. Determine each sum by writing an equivalent numberical expression using Commutative and Associate properties.

3 + 9 + 7 + 6

For commutative could you just put
3 + 7+ 9 + 6?
I'm confused on what do do for associative since there are no parenthesis in the original problem. Thanks,

User Icon for Henry Henry answered
11 years ago

Commutative means you can add in any order: 3 + 7 +9 + 6 = 9+6+3+7 = 25.

The Associative Property means that the
order of grouping does not matter:
(3+7) + (9+6) = (3+9) + (7+6) = 25.

You are correct on the Commutative
Property.