Shortcut to multiply any number from 40-49 by 5 In the previous post we learnt how to multiply any number from 30 to 39 by 5 in seconds.Today we are going to learn another amazing trick to multiply any number from 40 to 49 by 5 in seconds.

Let us see the steps
Step 1: Assume the base as 40

Step 2: Multiply the base by 5

Step 3:Multiply the unit place digit by 5

Step 4:Add the results obtained in step 2 and step 3 to get

Now lets consider a few examples to understand better

Example 1:43 x 5 = ?

Step 1:We assume the base as 40.

Step 2:Multiplying the base by 5
We get 40 x 5 = 200

Step 3:Multiplying the unit place digit by 5
We get 3 x 5 =15

Step 4:Adding results obtained in step 2 and step 3
We get 200 + 15 = 215

Ans 43 x 5 = 215

Example 2:48 x 5 = ?

Step 1:We assume the base as 40.

Step 2:Multiplying the base by 5
We get 40 x 5 = 200

Step 3:Multiplying the unit place digit by 5
We get 8 x 5 = 40

Step 4:Adding results obtained in step 2 and step 3
We get 200 + 40 = 240

Ans 48 x 5 = 240

1 Response

1. Tricks tutor says:

divide the number by 2 and put a 0 on right is the best tricks to multiply with 5.watch my video on https://youtu.be/b1Tp_ub90v0