Indicate which property is illustrated in Step 1.

Step 1 6 + (2 + 9) + 0 = 6 + (9 + 2) + 0
Step 2 = (6 + 9) + (2 + 0)
Step 3 = (6 + 9) + 2
Step 4 = 15 + 2
associative property of addition
commutative property of addition
identity property of addition
associative property of multiplication

Question

Indicate which property is illustrated in Step 1.

Step 1	6 + (2 + 9) + 0	=	6 + (9 + 2) + 0
Step 2		=	(6 + 9) + (2 + 0)
Step 3		=	(6 + 9) + 2
Step 4		=	15 + 2
associative property of addition
commutative property of addition
identity property of addition
associative property of multiplication

anonymous · Answer

The fact that with addition:
$$a + b = b + a$$is known as the Commutative Property of Addition