Multiplying Two-digit Numbers By 11

Multiplying Two-digit Numbers By 11 

This math multiplication trick helps you to multiply any two digit number by 11 easily and quickly.

Example 1:

Let us take the example of 12 * 11

Step 1:

In the first step, let us focus on 12.

Split the number 12 like this,1-------2

Step 2:

Now add the two digits of 12

That is1+2=3

Step 3:

Place 3 in the middle of the two digits of 12 and the result is 132

Now, we have arrived at the answer for 12*11=132.

Example 2:

Now let us take another example.65 * 11

Step 1:

As mentioned above in the first step, focus on 65.

Split the number 65 like this,6-------5

Step 2:

Now add the two digits of 65

That is6+5=11

Step 3:

However, we cannot place 11 in the middle of the two digits of 65.Write 1 in between 6 and 5. Carry over the remaining 1 to the previous number 6 as given below.

Add the 1 with 6 to get the digit in the hundredth place.

We have arrived at the answer for 65*11=715.