SHORT CUT TO MULTIPLY ANY NO BY 12

EG: IF WE WANT TO PERFORM

12 X 6

The first thing is to always multiply the 1 of the twelve by the
number we are multiplying by, in this case 6. So 1 X 6 = 6.

Multiply this 6 by 10 giving 60.

Now multiply the 6 by the 2 of twelve giving 12. Add this to 60 giving 72.

Therefore 6 X 12 = 72

2 comments:

baba said...

waste trick

SmaZ said...

This is true for any no. multiplication
For e.g. 21

Let 27*8

20*8+7*8=160+56=216

So it is not a trick

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