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To multiply any number by 9 the last digit goes 9,8,7,6, ... your hands can help! Example: to multiply 9 by 8, hold your 8th finger down, and count "7" and "2", the answer is 72

To multiply any number by 9 the last digit goes 9,8,7,6, ...


 


your hands can help! Example: to multiply 9 by 8,


hold your 8th finger down, and count "7" and "2",


the answer is 72

Grade:12

1 Answers

Vijay Mukati
askIITians Faculty 2590 Points
8 years ago
Good Method, You can learn many more shortcuts from us.

Thanks.

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