Question

Which is an example of the commutative property?

A.
–13 + 27 = 27 + (–13)

B.
–21 + (11 + 13) = (–21 + 11) + 13

C.
4(–3 + 5) = 4(–3) + 4 ∙ 5

D.
–(–8 + 3) = 8 + (–3)

Answer 1

Commutative: a + b = b + a (change of order)
Associative: a + (b + c) = (a + b) + c (change of grouping)

Answer 2

A does commutative property allows you to swap numbers and have it sstill mean the same

Answer 3

Thanks! :) Both very helpful answers!