The answer is 100. Simply add the numbers together arithmetically as you would for the problem two plus two. To check your work, a calculator is the best option.
25 + 25 + 25 = 75
75 + 16 + 25 = 116
-75+25 = -50
50 + 25 = 75
the commutative property of addition
75 25 + 75 = 100
18 + 25 + 32 = 75
42 + 25 + 8 = 75
75 - 100 + 0 = -25
4/25 + 2/15 = 12/75 + 10/75 = 22/75
5
-100