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.
√ This is the symbol of the square root which looks like a tick.
To remind you that the symbol of a square root is a tick, see below:
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.