We are going to introduce amazing trick to check multiplication of any two given numbers is done correctly. Let us check how its steps goes.

First Step : Check the sum of the digits of the numbers we are going to be multiplied .

Second Step :Multiply the results obtained in step 1 and find its sum of digits you got.

Third Step :Get the sum of the digits of the real answer you got .

Forth Step :Compare the digits in step two and three If its same then it means you have multiplied correctly.

Examples

Let us consider an example to understand better Example 1: 403*255=102765

We need to check whether 102765 is the correct answer. So lets follow the steps

First Step :Check the sum of the digits of the numbers we are going to be multiplied.Digits of 403 403=4+0+3=7 Digits of 255 255=2+5+5=3

Second Step:Multiply the results obtained in step 1 and find its sum of digits you got. we get, 7x 3=21 finding sum of digits of 21 21=2+1=3

Third Step:Get the sum of the digits of the real answer you got .102765 102765=1+0+2+7+6+5=21=2+1=3

Forth Step:Compare the digits in step two and three If its same then it means you have multiplied correctly.In this case both times answer is 3. So We can say 403*255=102765 is exactly right.

This is a good way to impress your friend. Its a good magic and math magician multiplication trick.

**Tags:**multiplication