Question

How to calculate three digit multiplication for banking?

Answer 1

Now let's do this with a trick

Step 1

First step is same as the conventional method, here we multiply 2 with 2.





Step 2

This is an interesting step. Now multiply last digit first value and first digit of second value and vice-versa. Then we add outcomes. But we need the last number that is 8 here.



 Step 3 

This is the last step, in this step we do multiplication ten's digit of both value and add the remainder from previous calculation. That's it, we completed the calculation in 3 steps instead of six steps.