Step by step
The question
Question: find the range of 0, 14, 6 and 9.
Range of 0, 14, 6, 9
The range shows how spread out the numbers are: the biggest minus the smallest.
range = biggest − smallest
1 Put them in order
First we put them in order, smallest first: 0, 6, 9 and 14.
= 0, 6, 9, 14
We still have 4 numbers.
None is lost.
4 numbers ✓
2 Smallest and biggest
In order, the smallest is first and the biggest is last.
The smallest is 0.
The biggest is 14.
= smallest = 0, biggest = 14
3 Take away
The range is the biggest minus the smallest.
= range = 14 − 0
14 minus 0 is 14.
= range = 14
Let's look back.
First: put them in order.
Then: smallest and biggest.
Last: take away.
Answer
= range = 14