top of page
Search

Short Trick for Multiplication with 5, 25, 125, 625, 1325, 6625, 33125,...

Tricks to Multiply any number by 5.

Let us understand how it works by multiplying 67456 X 5

Step 1: Join one 0(zero) at the end the number

674560

Step 2: Divide the number obtained in step 1 by 2.

674560 ÷ 2

Tricks to Multiply any number by 25.

Let us understand how it works by multiplying 67456 X 25

Step 1: Join one 0(zero) at the end the number

674560

Step 2: Divide the number obtained in step 1 by 2.

674560 ÷ 2

= 337280

Repeat the steps again as 25 is 5 X 5.

Step 3: Join one 0(zero) at the end the number

3372800

Step 4: Divide the number obtained in step 3 by 2.

3372800 ÷ 2

This method can used to Multiply any number with power of 5 i.e. 5, 25, 125, 625……

As the power increases the first 2 steps gets repeated as many times.

Tricks to Multiply any number by 125.

Let us understand how it works by multiplying 67456 X 125

The first 4 steps as used for multiplication with 25 remains same and as 25 X 5 = 125, so 2 more steps increase

Step 5: Join one 0(zero) at the end the number

16864000

Step 6: Divide the number obtained in step 5 by 2.

16864000 ÷ 2