Question

Fill in the blanks. Then, choose the property of addition you used.

(a)
(b)
(c)
0 + 0 = 7
7 + 0 = 2 + 7
(5 + 7) + 5+ (7 + 3)
=
(Choose one)
(Choose one)
(Choose one)

Answer 1

(a) 7

(b) 7

(c) 27

The property of addition used in all three equations is the associative property, which allows us to regroup the numbers being added without changing their sum.