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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 19, 23, 25 and 29.

    19 · 23 · 25 · 29 · Calculating the mean

  2. 2. Find the mean of 18, 20, 22 and 24.

    18 · 20 · 22 · 24 · Calculating the mean

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

    16 · 16 · 18 · 18 · Calculating the mean

  4. 4. Find the mean of 27, 27, 29 and 29.

    27 · 27 · 29 · 29 · Calculating the mean

  5. 5. Find the mean of 17, 20, 22 and 25.

    17 · 20 · 22 · 25 · Calculating the mean

  6. 6. Find the mean of 18, 22, 24 and 28.

    18 · 22 · 24 · 28 · Calculating the mean

  7. 7. Find the mean of 8, 8, 12 and 12.

    8 · 8 · 12 · 12 · Calculating the mean

  8. 8. Find the mean of 4, 2, 10 and 8.

    4 · 2 · 10 · 8 · Calculating the mean

  9. 9. Find the mean of 23, 25, 29 and 31.

    23 · 25 · 29 · 31 · Calculating the mean

  10. 10. Find the mean of 10, 10, 16 and 16.

    10 · 10 · 16 · 16 · Calculating the mean

  11. 11. Find the mean of 22, 26, 28 and 32.

    22 · 26 · 28 · 32 · Calculating the mean

  12. 12. Find the mean of 9, 11, 17 and 19.

    9 · 11 · 17 · 19 · Calculating the mean
12 questions · Seed 53 · 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 19, 23, 25 and 29.

    24

    Sum = 19 + 23 + 25 + 29 = 96. Divide by 4: 96 ÷ 4 = 24.

  2. 2. Find the mean of 18, 20, 22 and 24.

    21

    Sum = 18 + 20 + 22 + 24 = 84. Divide by 4: 84 ÷ 4 = 21.

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

    17

    Sum = 16 + 16 + 18 + 18 = 68. Divide by 4: 68 ÷ 4 = 17.

  4. 4. Find the mean of 27, 27, 29 and 29.

    28

    Sum = 27 + 27 + 29 + 29 = 112. Divide by 4: 112 ÷ 4 = 28.

  5. 5. Find the mean of 17, 20, 22 and 25.

    21

    Sum = 17 + 20 + 22 + 25 = 84. Divide by 4: 84 ÷ 4 = 21.

  6. 6. Find the mean of 18, 22, 24 and 28.

    23

    Sum = 18 + 22 + 24 + 28 = 92. Divide by 4: 92 ÷ 4 = 23.

  7. 7. Find the mean of 8, 8, 12 and 12.

    10

    Sum = 8 + 8 + 12 + 12 = 40. Divide by 4: 40 ÷ 4 = 10.

  8. 8. Find the mean of 4, 2, 10 and 8.

    6

    Sum = 4 + 2 + 10 + 8 = 24. Divide by 4: 24 ÷ 4 = 6.

  9. 9. Find the mean of 23, 25, 29 and 31.

    27

    Sum = 23 + 25 + 29 + 31 = 108. Divide by 4: 108 ÷ 4 = 27.

  10. 10. Find the mean of 10, 10, 16 and 16.

    13

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

  11. 11. Find the mean of 22, 26, 28 and 32.

    27

    Sum = 22 + 26 + 28 + 32 = 108. Divide by 4: 108 ÷ 4 = 27.

  12. 12. Find the mean of 9, 11, 17 and 19.

    14

    Sum = 9 + 11 + 17 + 19 = 56. Divide by 4: 56 ÷ 4 = 14.

12 questions · Seed 53 · 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 19, 23, 25 and 29.

    19 · 23 · 25 · 29 · Calculating the mean

  2. 2. Find the mean of 18, 20, 22 and 24.

    18 · 20 · 22 · 24 · Calculating the mean

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

    16 · 16 · 18 · 18 · Calculating the mean

  4. 4. Find the mean of 27, 27, 29 and 29.

    27 · 27 · 29 · 29 · Calculating the mean

  5. 5. Find the mean of 17, 20, 22 and 25.

    17 · 20 · 22 · 25 · Calculating the mean

  6. 6. Find the mean of 18, 22, 24 and 28.

    18 · 22 · 24 · 28 · Calculating the mean

  7. 7. Find the mean of 8, 8, 12 and 12.

    8 · 8 · 12 · 12 · Calculating the mean

  8. 8. Find the mean of 4, 2, 10 and 8.

    4 · 2 · 10 · 8 · Calculating the mean

  9. 9. Find the mean of 23, 25, 29 and 31.

    23 · 25 · 29 · 31 · Calculating the mean

  10. 10. Find the mean of 10, 10, 16 and 16.

    10 · 10 · 16 · 16 · Calculating the mean

  11. 11. Find the mean of 22, 26, 28 and 32.

    22 · 26 · 28 · 32 · Calculating the mean

  12. 12. Find the mean of 9, 11, 17 and 19.

    9 · 11 · 17 · 19 · Calculating the mean
12 questions · Seed 53 · 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 19, 23, 25 and 29.

    24

    Sum = 19 + 23 + 25 + 29 = 96. Divide by 4: 96 ÷ 4 = 24.

  2. 2. Find the mean of 18, 20, 22 and 24.

    21

    Sum = 18 + 20 + 22 + 24 = 84. Divide by 4: 84 ÷ 4 = 21.

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

    17

    Sum = 16 + 16 + 18 + 18 = 68. Divide by 4: 68 ÷ 4 = 17.

  4. 4. Find the mean of 27, 27, 29 and 29.

    28

    Sum = 27 + 27 + 29 + 29 = 112. Divide by 4: 112 ÷ 4 = 28.

  5. 5. Find the mean of 17, 20, 22 and 25.

    21

    Sum = 17 + 20 + 22 + 25 = 84. Divide by 4: 84 ÷ 4 = 21.

  6. 6. Find the mean of 18, 22, 24 and 28.

    23

    Sum = 18 + 22 + 24 + 28 = 92. Divide by 4: 92 ÷ 4 = 23.

  7. 7. Find the mean of 8, 8, 12 and 12.

    10

    Sum = 8 + 8 + 12 + 12 = 40. Divide by 4: 40 ÷ 4 = 10.

  8. 8. Find the mean of 4, 2, 10 and 8.

    6

    Sum = 4 + 2 + 10 + 8 = 24. Divide by 4: 24 ÷ 4 = 6.

  9. 9. Find the mean of 23, 25, 29 and 31.

    27

    Sum = 23 + 25 + 29 + 31 = 108. Divide by 4: 108 ÷ 4 = 27.

  10. 10. Find the mean of 10, 10, 16 and 16.

    13

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

  11. 11. Find the mean of 22, 26, 28 and 32.

    27

    Sum = 22 + 26 + 28 + 32 = 108. Divide by 4: 108 ÷ 4 = 27.

  12. 12. Find the mean of 9, 11, 17 and 19.

    14

    Sum = 9 + 11 + 17 + 19 = 56. Divide by 4: 56 ÷ 4 = 14.

12 questions · Seed 53 · Age guidance, not curriculum certification