Question

If you want to know that a number is a square of what
So how will you find it ?
Example - 81 is a square of 9
And you want to know that which number'so square is 81 ???
Suggest. ..
Plz friends help
Urgently

Answer 1

firstly u have to learn all squares up to 20 because there is no short trick for that ^_^

Answer 2

for solving the problem, you need to do the long division method