27 February 2012

Funny Math Tricks and Tips for Multiplication

In this post I will show few funny multiplication process by which you can prove yourself better then a calculator.

I often use these tricks to prove myself good in math’s although i am a very bad in mathematics. You can challenge your friends that you are better than a normal calculator. How? just follow the process

Tell your friend to calculate 111111111 x 111111111 with the help of his calculator.


Your friend will find the result too large to be calculated by a calculator. Now you can surprise him by givin the answer. The answer will be 12345678987654321

How can you calculate: When you multiply by the same number of 1’s in both side then just count the 1’s in 1 side. For example, in the multiplication 111111111×111111111 we have 9, 1’s in each side. So type or write from 1 to 9 (123456789) . After typing 9 then start writing from the reverse (87654321). So inaggregate the answer will be 12345678987654321 .

IN THE SAME WAY ,

11 x 11 = 121

111 x 111 = 12321

1111 x 1111= 1234321

11111 x 11111 = 123454321

111111 x 111111= 12345654321

1111111 x 1111111= 1234567654321

11111111 x 11111111= 123456787654321

111111111 x 111111111= 12345678987654321

I hope you will understand the tricks from the example

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