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

the first one because the numbers changed places

Answer 2

Which of these acts like the equal sign is a mirror?

Answer 3

that would be the reflexive property of equality

Answer 4

not really the same as the commutative law of addition

Answer 5

The answer is A.