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MathsAges 13-15

Calculating the mean

Sum a set of four data values and divide by four to calculate the arithmetic mean. Review suitability for your learners before teaching.

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Age band:Ages 10-12Ages 13-15

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Worksheet StudioPractice pack · Ages 13-15

Calculating the mean

Take your time. Show your thinking.

  1. 1. Find the mean of 17, 16, 22 and 21.

    17 · 16 · 22 · 21 · Calculating the mean

  2. 2. Find the mean of 6, 6, 10 and 10.

    6 · 6 · 10 · 10 · Calculating the mean

  3. 3. Find the mean of 12, 10, 18 and 16.

    12 · 10 · 18 · 16 · Calculating the mean

  4. 4. Find the mean of 7, 6, 10 and 9.

    7 · 6 · 10 · 9 · Calculating the mean

  5. 5. Find the mean of 14, 15, 23 and 24.

    14 · 15 · 23 · 24 · Calculating the mean

  6. 6. Find the mean of 26, 24, 30 and 28.

    26 · 24 · 30 · 28 · Calculating the mean

  7. 7. Find the mean of 4, 8, 10 and 14.

    4 · 8 · 10 · 14 · Calculating the mean

  8. 8. Find the mean of 10, 13, 17 and 20.

    10 · 13 · 17 · 20 · Calculating the mean

  9. 9. Find the mean of 11, 15, 17 and 21.

    11 · 15 · 17 · 21 · Calculating the mean

  10. 10. Find the mean of 19, 19, 25 and 25.

    19 · 19 · 25 · 25 · Calculating the mean

  11. 11. Find the mean of 10, 9, 17 and 16.

    10 · 9 · 17 · 16 · Calculating the mean

  12. 12. Find the mean of 6, 7, 13 and 14.

    6 · 7 · 13 · 14 · Calculating the mean
12 questions · Seed 42 · Age guidance, not curriculum certification
View the answer key
Worksheet StudioAnswer key · Ages 13-15

Calculating the mean

Answers and reasoning. Review before teaching.

  1. 1. Find the mean of 17, 16, 22 and 21.

    19

    Sum = 17 + 16 + 22 + 21 = 76. Divide by 4: 76 ÷ 4 = 19.

  2. 2. Find the mean of 6, 6, 10 and 10.

    8

    Sum = 6 + 6 + 10 + 10 = 32. Divide by 4: 32 ÷ 4 = 8.

  3. 3. Find the mean of 12, 10, 18 and 16.

    14

    Sum = 12 + 10 + 18 + 16 = 56. Divide by 4: 56 ÷ 4 = 14.

  4. 4. Find the mean of 7, 6, 10 and 9.

    8

    Sum = 7 + 6 + 10 + 9 = 32. Divide by 4: 32 ÷ 4 = 8.

  5. 5. Find the mean of 14, 15, 23 and 24.

    19

    Sum = 14 + 15 + 23 + 24 = 76. Divide by 4: 76 ÷ 4 = 19.

  6. 6. Find the mean of 26, 24, 30 and 28.

    27

    Sum = 26 + 24 + 30 + 28 = 108. Divide by 4: 108 ÷ 4 = 27.

  7. 7. Find the mean of 4, 8, 10 and 14.

    9

    Sum = 4 + 8 + 10 + 14 = 36. Divide by 4: 36 ÷ 4 = 9.

  8. 8. Find the mean of 10, 13, 17 and 20.

    15

    Sum = 10 + 13 + 17 + 20 = 60. Divide by 4: 60 ÷ 4 = 15.

  9. 9. Find the mean of 11, 15, 17 and 21.

    16

    Sum = 11 + 15 + 17 + 21 = 64. Divide by 4: 64 ÷ 4 = 16.

  10. 10. Find the mean of 19, 19, 25 and 25.

    22

    Sum = 19 + 19 + 25 + 25 = 88. Divide by 4: 88 ÷ 4 = 22.

  11. 11. Find the mean of 10, 9, 17 and 16.

    13

    Sum = 10 + 9 + 17 + 16 = 52. Divide by 4: 52 ÷ 4 = 13.

  12. 12. Find the mean of 6, 7, 13 and 14.

    10

    Sum = 6 + 7 + 13 + 14 = 40. Divide by 4: 40 ÷ 4 = 10.

12 questions · Seed 42 · Age guidance, not curriculum certification
Worksheet StudioPractice pack · Ages 13-15

Calculating the mean

Take your time. Show your thinking.

  1. 1. Find the mean of 17, 16, 22 and 21.

    17 · 16 · 22 · 21 · Calculating the mean

  2. 2. Find the mean of 6, 6, 10 and 10.

    6 · 6 · 10 · 10 · Calculating the mean

  3. 3. Find the mean of 12, 10, 18 and 16.

    12 · 10 · 18 · 16 · Calculating the mean

  4. 4. Find the mean of 7, 6, 10 and 9.

    7 · 6 · 10 · 9 · Calculating the mean

  5. 5. Find the mean of 14, 15, 23 and 24.

    14 · 15 · 23 · 24 · Calculating the mean

  6. 6. Find the mean of 26, 24, 30 and 28.

    26 · 24 · 30 · 28 · Calculating the mean

  7. 7. Find the mean of 4, 8, 10 and 14.

    4 · 8 · 10 · 14 · Calculating the mean

  8. 8. Find the mean of 10, 13, 17 and 20.

    10 · 13 · 17 · 20 · Calculating the mean

  9. 9. Find the mean of 11, 15, 17 and 21.

    11 · 15 · 17 · 21 · Calculating the mean

  10. 10. Find the mean of 19, 19, 25 and 25.

    19 · 19 · 25 · 25 · Calculating the mean

  11. 11. Find the mean of 10, 9, 17 and 16.

    10 · 9 · 17 · 16 · Calculating the mean

  12. 12. Find the mean of 6, 7, 13 and 14.

    6 · 7 · 13 · 14 · Calculating the mean
12 questions · Seed 42 · Age guidance, not curriculum certification
Worksheet StudioAnswer key · Ages 13-15

Calculating the mean

Answers and reasoning. Review before teaching.

  1. 1. Find the mean of 17, 16, 22 and 21.

    19

    Sum = 17 + 16 + 22 + 21 = 76. Divide by 4: 76 ÷ 4 = 19.

  2. 2. Find the mean of 6, 6, 10 and 10.

    8

    Sum = 6 + 6 + 10 + 10 = 32. Divide by 4: 32 ÷ 4 = 8.

  3. 3. Find the mean of 12, 10, 18 and 16.

    14

    Sum = 12 + 10 + 18 + 16 = 56. Divide by 4: 56 ÷ 4 = 14.

  4. 4. Find the mean of 7, 6, 10 and 9.

    8

    Sum = 7 + 6 + 10 + 9 = 32. Divide by 4: 32 ÷ 4 = 8.

  5. 5. Find the mean of 14, 15, 23 and 24.

    19

    Sum = 14 + 15 + 23 + 24 = 76. Divide by 4: 76 ÷ 4 = 19.

  6. 6. Find the mean of 26, 24, 30 and 28.

    27

    Sum = 26 + 24 + 30 + 28 = 108. Divide by 4: 108 ÷ 4 = 27.

  7. 7. Find the mean of 4, 8, 10 and 14.

    9

    Sum = 4 + 8 + 10 + 14 = 36. Divide by 4: 36 ÷ 4 = 9.

  8. 8. Find the mean of 10, 13, 17 and 20.

    15

    Sum = 10 + 13 + 17 + 20 = 60. Divide by 4: 60 ÷ 4 = 15.

  9. 9. Find the mean of 11, 15, 17 and 21.

    16

    Sum = 11 + 15 + 17 + 21 = 64. Divide by 4: 64 ÷ 4 = 16.

  10. 10. Find the mean of 19, 19, 25 and 25.

    22

    Sum = 19 + 19 + 25 + 25 = 88. Divide by 4: 88 ÷ 4 = 22.

  11. 11. Find the mean of 10, 9, 17 and 16.

    13

    Sum = 10 + 9 + 17 + 16 = 52. Divide by 4: 52 ÷ 4 = 13.

  12. 12. Find the mean of 6, 7, 13 and 14.

    10

    Sum = 6 + 7 + 13 + 14 = 40. Divide by 4: 40 ÷ 4 = 10.

12 questions · Seed 42 · Age guidance, not curriculum certification