How do you evaluate a square root?

You know to find out which out which number has been timed by itself to make the number in the square root. For example:


If the number inside the square root is 49, you need to find out which number has been timed by itself to make 49. As you may know, the number inside the square root is always a square number, so I would advise you to learn the list of square numbers.

7 x 7= 49, so the square root of 49 is 7. Remember that Evaluate simply means work out. So when to asked to evaluate a square number, cube number, square root, cube root etc., simply just work it out.

Evaluating powers and roots is grade D in maths.