1. Find two perfect-square numbers closest to your given number: If you need to determine the square root of an imperfect-square number like 40, find two perfect squares closest to it (6² = 36 and 7² ...

The first step in calculating a square root is identifying the number you want to find the square root of. For this example, we’ll use 16. Our goal is to find the number that, when multiplied by ...