Question

Match each item in Column A to an answer in Column B.

What property is shown by the equation?

Column A:
1. –(–33 + 18) = 33 + (–18)
2. –10 + (–15) = –15 + (–10)
3. 4 + (29 + 16) = 4 + (16 + 29)
4. –12 + (12 + 27) = (–12 + 12) + 27
Column B:
A. commutative property
B. associative property
C. opposite of a sum property