Hi Students,
Here its me Raksha - Maths Teacher.
You know how to do square of those numbers which unit place is 5 within second?
If NO, then please read below and after this you will be surely able to do it within seconds and easily make good impression on your friends, apart from this you definately boost up your maths marks.
Let number is 65.
step1. First Write 25 as - 25
step 2. Now take tens place no. = 6
Increment 1 on this number=7
Multiply both then you got= 42
Now you got 4225
Hence, square of 65 is 4225.
Please give your valuable comment.
Happy Learning!!