Math Shortcuts  

                                                 Multiply a number by 11

Examples

Multiply 43 by 11

Think it as 043 x 11

Bring down the ones digit

          ---- ---- 3

Add 4 and 3  ( 7 )

          ---- 7 3

Add 0 and 4 ( 4)

         473   ( answer )

 

 

    

 

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