Mathematics · Grades 4–8
Range of a data set
Sort the data or find its two extreme values.
The key idea
Sort the data or find its two extreme values.
range = maximum − minimum
Worked examples
Find the range of: 139, 48, 42, 141, 58, 112.
141 − 42 = 99
99
Find the range of: 144, 72, 147, 82, 126, 23.
147 − 23 = 124
124
Try it yourself
Find the range of: 67, 129, 140, 29, 11, 37.
Find the range of: 121, 98, 53, 66, 18, 93.
Check your understanding
Answers and marking notes
- 129
140 − 11 = 129
- 103
121 − 18 = 103
Further reading and review references
These are reference links, not copied exercises, institutional endorsement or proof of independent review.
Learning preview · teacher review required. Grade bands are approximate, not official curriculum alignment.