How to Do Math In Your Head : Quick Math Tricks: Using 2 to Simplify
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@tissa71 a lot easier is to use a caculator
altha2008 1 year ago 9
Takes too many steps.
If you do it like this:
50*67= (6700 / 2) = 3350
2*67= 134
3350 - 134 = 3216
It requires less calculations.
noxure 1 year ago 7