Sunday, 25 November 2012

How to Quick Multiply two two digit numbers : (For Any two)

    For Exp.   65*48

Step 1. 65             ( Multiply unit Digit)
                 0<-  (8*5=40)   
Step 2. (8*6+5*4)=68+4(previous carry)=72    (Cross multiply)

Step 3.   (6*4=24+7(carry))=31    (Multiply 10th digit)

     So result =3120.

#Second Method if you like for this question



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