Question

Indicate which property is illustrated in Step 3.


Step 1 6 + (7 + 2) + 0 = 6 + (2 + 7) + 0
Step 2 = (6 + 2) + (7 + 0)
Step 3 = (6 + 2) + 7
Step 4 = 8 + 7


A. associative property of addition

B. distributive property

C. identity property of addition

D. commutative property of multiplication