Question

in the following problem, which step uses additive identity to get to the next step?
-18+73+18
-18+18+73
0+73
73

Answer 1

0+73 uses the additive identity property. this property states 0+a = a and a+0=a. so adding any number to 0 gives you back rhat number.

Answer 2

Choose all properties that were used to simplify the following problem:

• 53 •
53 • •
53 • 1
53