Question

can you give me a trick for finding square
the trick should be easy and simple .
. don't dare to write any thing else with topic , if anyone will do this he will be reported ​

Answer 1

Answer:

Finding the square of a number doesn't really have any 'tricks' but here's a shortcut I like using:

So for eg. if I have to find $15^{2}$, I will add 15*10 with 15*5

= 150+75

= 225 = 15*15=225

This won't work for bigger numbers though