Practise Calculating Square Roots

In this activity, we will look at square roots.

The words squared and square roots are opposites.

You should know that 6 squared = 36 because 6 x 6 = 36

We write this as 6² = 36

And so the square root of 36 = 6

We write this as √36 = 6

Example

Work out √49

Answer

√49 = 7 because 7² = 49

We can use the table of square numbers below to help us.

Would you like to practise some questions? Are you prepared to give it a try?