Little Geek Nat

In Math, calculating numbers can indeed be quite annoying for some students. For example, you are doing a math test and end up spending too much of your precious time calculating 51 ² or √67. Fear not, for I have a quick and easy solution in squaring and square-rooting numbers. Just a quick reminder, N in the methods stated below means the number you are trying to square or square root. Let’s start with squaring 2 digit numbers and the ones that end with 0. These numbers are simple to be squared because all you have to do is to square the first digit then give two zeroes in front of it. Pretty simple, right? Here’s an example: 30². We can calculate this by first giving 3², which is 9, then give two zeroes in front of it, which makes it 900. Easy peasy! Conclusion, 30 x 30 = 900   à   3 x 3 = 9 and 00 = 900 Another example :           80 X 80 = 6400 And                 ...