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.
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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