The square root of any given number x is a number y such that y2 = x. In other words, a number y whose square (the result of multiplying the number by itself, or y ⋅ y) is x. Although it may seem a complex and somewhat tedious operation, it’s actually very easy to calculate by hand, you just have to know the steps to do it. 5-Minute Crafts is explaining the procedure, step by step, to help you to become a math whiz.