How Are Square Roots Calculated

Understanding square roots (video) | Khan Academy

https://www.khanacademy.org/math/algebra/x2f8bb11595b61c86:rational-exponents-radicals/x2f8bb11595b61c86:radicals/v/understanding-square-roots

There is in fact a way to find square roots without a calculator. It's the so called "guess and check" method where you basically estimate. If you are asked to find the square root of 30, for example, you know that 5 …

How to Calculate a Square Root by Hand - wikiHow

https://www.wikihow.com/Calculate-a-Square-Root-by-Hand

How to simplify square roots (review) (article) | Khan Academy

https://www.khanacademy.org/math/algebra/x2f8bb11595b61c86:rational-exponents-radicals/x2f8bb11595b61c86:simplifying-square-roots/a/simplifying-square-roots-review

Yes, you can take that approach. But, your work is incomplete. When you simplify a square root, you need to ensure you have removed all perfect squares. With 3√8, you still have a perfect square inside the radical. 3√8 = 3√(4*2) = 3√4 * √2 = 3*2√2 = 6√2 Hope this helps.

Square root - (Definition, Formula) | How to Find Square Roots?

https://byjus.com/maths/square-root/

Solution: Step 1: Select any two perfect square roots that you feel your number may fall in between. We know that 2 2 = 4; 3 2 =... Step 2: Divide the given number by one of those …