Fastest Way to find the square of two digit numbers.

I assure you any square needed between 1-99 can be done mentally using this technique.
I am assuming you know the squares from 1-9, that's the only prerequisite of using this technique. lets start with an example, suppose you are siting in the middle of exam hall and you need to find a square of very nasty number like 67. and you don't have time to complete whole multiplication of 67*67. Follow these 3 simple steps, with few practice you should be able to answer square of any number.