Mammoth Memory

Square root

Square root – The square root of a number is the value that is multiplied by itself to give you that number.

(i.e. the root of the number)

The square root has a symbol that is shaped like a tick.

A square root is the number that is being multiplied

To help you remember what the square root of a number is think of a ROOT OF A TREE covered in ticks (bugs) (see below).

Examples

What is the square root of 9?

We know the tree is 9 but what is its ROOT?

The root of 9 is 3  `(3times3=9)`

NOTE:

The square root has a symbol, a sort of tick with a line.

`root()9=3`

We say the square root of 9 equals 3.

Here are the first 10 square roots of numbers up to 100:

`root()1`

`=`

`1`

`root()4`

`=`

`2`

`root()9`

`=`

`3`

`root()16`

`=`

`4`

`root()25`

`=`

`5`

`root()36`

`=`

`6`

`root()49`

`=`

`7`

`root()64`

`=`

`8`

`root()81`

`=`

`9`

`root()100`

`=`

`10`


NOTE:

These should be easy because if you see the section on multiplication tables it is imperative that a child should know all numbers up to 12 multiplied by themselves.

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