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math tricks-2: Multiplying a number by 11 is soooo easy!!!

10/23/2011

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Dear All,

To multiply any 2-figure number by 11, we just put the total of two figures in between the two figures:

72x11 =  7   9    2  = 792   (  7 and 2 are put aside and their sum 7+2=9 is put in between)  

43x11= 4    7     3 =473     (  4 and 3 are put aside and their sum 4+3=7 is put in between)

Enjoy Mathematical Fun.
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