**Squares and Square roots**

**Squares and Square roots****For Easy Understanding, we told you about squares and square roots first, The next you will learn is Find Square Root ...**

**Squares and Square Roots**

First learn about Squares, then Square Roots are easy.

How to Square A NumberTo square a number, just multiply it by itself ...

Example: What is 3 squared?

## Squared" is often written as a little 2 like this:

This says

(the little 2 says the number appears twice in multiplying)

**"4 Squared equals 16"**(the little 2 says the number appears twice in multiplying)

**Square Roots**

A **square root** goes the other way:

3 squared is 9, so a

A square root of a number is ...

... a value that can be

A square root of

...

**square root of 9 is 3**A square root of a number is ...

... a value that can be

**multiplied by itself**to give the original number.A square root of

**9**is ......

**3**, because**when 3 is multiplied by itself**we get**9**.**The Square Root Symbol**

This is the special symbol that means "square root", it is sort of like a tick,

and actually started hundreds of years ago as a dot with a flick upwards.

It is called the

*, and always makes mathematics look important!*

**radical****We use it like this:**

we would say

**"square root of 9 equals 3"**