Wednesday, December 10, 2008

Mutiplying a number by 11

Tip : For 2 digit nos Simply add the first and second digits and place the result between them.

Eg. 24 * 11 = 264

another eg : 79*11 = units place =9 , here 7+9= 16 so write 6 in middle..
carry fwd 1 and add to 7 so the ans will be 869

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