square root

Question

How to do "√" math? I don't understand these sort of maths! Help!

Answer 1

That symbol means 'the square root of".  The symbol is also known as the 'radical' sign.

It means what number would need to be multiplied by itself to get the number shown under the radical sign.

For instance 'the square root of' 4 is 2 since 2 * 2 = 4, the square root of 9 is 3 since 3 * 3 = 9, the square root of 100 is 10 since 10 * 10 is 100. 

 

Hope this helps Arefa.

 

Mary Ann

Answer 2

The square root is the number which when multiplied times itself produces the number whose square root you are seeking.

 

So for instance, the square root of 49 is 7, because when you multiply 7 * 7, you get 49.