Question

(+72) - (-18) =
Hmmmmm what do i do

Answer 1

90

Explanation:

Positive 72 - (-18), is the same as 72 + 18, because two negatives cancel out and is the same as if you were adding. In other words, if you subtract a negative number, you are contradicting the negative, so you have one positive.

Hopefully that will help. :)