It's already an approximation - you do not need to get precise with your division. Also - you should be able to do 72 divided by at least 2,3,4 (and estimate it

It's already an approximation - you do not need to get precise with your division. Also - you should be able to do 72 divided by at least 2,3,4 (and estimate it for others), even by times tables/estimation and not long division.