Question

Opening Exercise

Use mental math to solve the following:
Number String
100% of 180 =
25% of 180 =
-75% of 180 =
37.5% of 180 =

Answer 1

100% of 180 = 180

25% of 180 = 45

-75% of 180 = -135

37.5% of 180 = 67.5

Explanation:

I looked them up on an app so I hope its right!