How do yo find the square root?

Divide your number into perfect square factors ...

Take the square roots of your perfect square factors ...

Reduce your answer to simplest terms, if your number doesn't factor perfectly ...

Estimate, if necessary ...

Reduce your number to its lowest common factors as a first step.

When finding square roots, you're finding the "roots" of a square (a number multiplied by itself), Example: 9 and 9 (9 x 9) are the roots of 81, so the square root is 9, and 10 and 10 (10 x 10) are the roots of 100, so the square root is 10.