Multiply by 4 - Mathematics Tricks
by Sanju[ Edit ] 2012-07-11 11:43:06
Multiply by 4 - Mathematics Tricks
This is a very simple trick which may appear obvious to some, but to others it is not. The trick is to simply multiply by two, then multiply by two again:
58 x 4 = (58 x 2) + (58 x 2) = (116) + (116) = 232
