Question

Calculate the value of the expression on both sides of the equality and state which property applies:
1. 18 + 46 = 46 + (-18)
2. 231 + (-104) = (-104) + 231

Answer 1

1. 18 + 46 = 46 + (-18)

Solution:

64≠28

2. 231 + (-104) = (-104) + 231

Solution:

127=127

Commutative property of addition