Let’s solve each problem step by step. To find the average of a set of numbers, we add them all up and then divide by how many numbers there are.
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Problem 1: 10, 15, 30, 5
Add them:
10 + 15 = 25
25 + 30 = 55
55 + 5 = 60
There are 4 numbers.
Average = 60 ÷ 4 =
15
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Problem 2: 21, 26, 13
Add them:
21 + 26 = 47
47 + 13 = 60
There are 3 numbers.
Average = 60 ÷ 3 =
20
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Problem 3: 6, 8, 4, 1, 6
Add them:
6 + 8 = 14
14 + 4 = 18
18 + 1 = 19
19 + 6 = 25
There are 5 numbers.
Average = 25 ÷ 5 =
5
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Problem 4: 32, 25, 40, 11
Add them:
32 + 25 = 57
57 + 40 = 97
97 + 11 = 108
There are 4 numbers.
Average = 108 ÷ 4 =
27
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Problem 5: 10, 35, 50, 25
Add them:
10 + 35 = 45
45 + 50 = 95
95 + 25 = 120
There are 4 numbers.
Average = 120 ÷ 4 =
30
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Problem 6: 6, 6, 6, 6, 6, 6
All numbers are 6. There are 6 of them.
Sum = 6 × 6 = 36
Average = 36 ÷ 6 =
6
(Or just notice — if all numbers are the same, the average is that number!)
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Problem 7: 23, 12, 34, 11
Add them:
23 + 12 = 35
35 + 34 = 69
69 + 11 = 80
There are 4 numbers.
Average = 80 ÷ 4 =
20
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Problem 8: 19, 12, 8
Add them:
19 + 12 = 31
31 + 8 = 39
There are 3 numbers.
Average = 39 ÷ 3 =
13
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Final Answer:
1) 15
2) 20
3) 5
4) 27
5) 30
6) 6
7) 20
8) 13
Parent Tip: Review the logic above to help your child master the concept of averages worksheet.
