Squares and square roots
Squares
- How to Square A Number
To square a number, just multiply it by itself ...
- "Squared" is often written as a little 2 like this:
- This says "4 Squared equals 16"
That's interesting
- When you square a negative number you get a positive result.
Square roots
A square root goes the other way:
3 squared is 9, so a square root of 9 is 3
- A square root of a number is ...
- A square root of 9 is ...
Perfect squares
Cube and cube roots
- How to Cube A Number
- Example - 3 cubed
- 3 Cubed = 3 × 3 × 3 × = 27
Cube roots
- A cube root goes the other direction:
- The cube root of a number is ...
- The cube root of 27 is ...
Perfect cubes
The Perfect Cubes are the cubes of the whole numbers:
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