Question

Indicate which property is illustrated in Step 1.

Step 1 2 + (1 + 11) + 0 = 2 + (11 + 1) + 0
Step 2 = (2 + 11) + (1 + 0)
Step 3 = (2 + 11) + 1
Step 4 = 13 + 1
A. commutative property of addition
B. commutative property of multiplication
C. identity property of addition
D. distributive property

Answer 1

c

Answer 2

Thanks.