The range

Difficulty Stretch · Set e2e1lf

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1
What is the range of 49, 109, 82, 18, 54, 94, 24?
2
What is the range of 16, 67, 83, 66, 86, 7, 8?
3
What is the range of 28, 77, 68, 54, 19, 107, 73?
4
What is the range of 51, 61, 10, 76, 110, 49, 91?
5
What is the range of 63, 9, 22, 38, 119, 49, 7?
6
What is the range of 103, 119, 58, 51, 49, 2, 13?
7
What is the range of 39, 23, 15, 40, 69, 15, 58?
8
What is the range of 87, 27, 43, 105, 16, 91, 9?
9
What is the range of 97, 79, 115, 8, 60, 68, 2?
10
What is the range of 31, 11, 42, 74, 90, 104, 64?
11
What is the range of 53, 75, 49, 41, 21, 89, 39?
12
What is the range of 19, 95, 114, 62, 48, 68, 28?
13
What is the range of 33, 2, 103, 69, 61, 50, 64?
14
What is the range of 32, 6, 21, 18, 109, 43, 48?
15
What is the range of 26, 116, 10, 84, 32, 92, 72?
16
What is the range of 102, 115, 110, 95, 20, 64, 101?
17
What is the range of 45, 16, 82, 27, 67, 39, 60?
18
What is the range of 78, 48, 7, 75, 60, 89, 13?
19
What is the range of 10, 38, 108, 56, 78, 19, 75?
20
What is the range of 82, 22, 97, 94, 9, 102, 5?

What is in this set

The numbers in this set run from 2 to 120.
A careful solution takes 3 written steps on average.
The mistake this set invites most often, in 100% of the problems: that is the largest value; the range is the largest less the smallest.
Answers are a whole number.

Drawing 240 problems from this page produced 240 different ones, 100% — so a sheet of 20 is a new sheet almost every time.

The same skill, harder or easier

We would put this in front of a grade 5 class. That is our judgement, not a standard, and it is printed here so you can disagree with it. Everything else we put in that year.