#1**+1 **

72-0 is just 72 because if you take nothing away from 72 you still have 72.

AdamTaurus May 18, 2017

#2**+1 **

*Your answer is 72 because if you have 72 stuff and you give away none, you still have 72 because you gave away none.*

*72 - 0 = 72 is your answer.*

AsadRehman May 18, 2017