How to Square Anything
First, a disclaimer. This method is meant to be a trick to show off to people and make you seem really smart. This will not save you time on a test over multiplying the number by itself, especially with numbers that are three digits or more. You also need to be fairly good at multiplication. (A number and then ^2 is that number squared; 8^2 is 8 squared.) To use this method, you need to know the squares of the numbers 1 through 9, and the square of higher numbers may be helpful as well. (The square of a number is the number multiplied by itself) We’ll start with two-digit numbers. I’ll split all two-digit numbers into several categories. Numbers that end in 0. Square the first digit and stick 00 on the end. Example: 80^2. 8^2=64. 80^2= 6,400. Numbers in between 11 and 29 (inclusive). Knock the units digit off…