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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 4, 2, 10 and 8.

    4 · 2 · 10 · 8 · Calculating the mean

  2. 2. Find the mean of 12, 14, 16 and 18.

    12 · 14 · 16 · 18 · Calculating the mean

  3. 3. Find the mean of 17, 21, 23 and 27.

    17 · 21 · 23 · 27 · Calculating the mean

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

    11 · 15 · 17 · 21 · Calculating the mean

  5. 5. Find the mean of 6, 7, 11 and 12.

    6 · 7 · 11 · 12 · Calculating the mean

  6. 6. Find the mean of 5, 8, 10 and 13.

    5 · 8 · 10 · 13 · Calculating the mean

  7. 7. Find the mean of 5, 4, 8 and 7.

    5 · 4 · 8 · 7 · Calculating the mean

  8. 8. Find the mean of 10, 10, 12 and 12.

    10 · 10 · 12 · 12 · Calculating the mean

  9. 9. Find the mean of 19, 19, 21 and 21.

    19 · 19 · 21 · 21 · Calculating the mean

  10. 10. Find the mean of 24, 25, 27 and 28.

    24 · 25 · 27 · 28 · Calculating the mean

  11. 11. Find the mean of 25, 25, 29 and 29.

    25 · 25 · 29 · 29 · Calculating the mean

  12. 12. Find the mean of 15, 16, 22 and 23.

    15 · 16 · 22 · 23 · Calculating the mean
12 questions · Seed 104729 · 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 4, 2, 10 and 8.

    6

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

  2. 2. Find the mean of 12, 14, 16 and 18.

    15

    Sum = 12 + 14 + 16 + 18 = 60. Divide by 4: 60 ÷ 4 = 15.

  3. 3. Find the mean of 17, 21, 23 and 27.

    22

    Sum = 17 + 21 + 23 + 27 = 88. Divide by 4: 88 ÷ 4 = 22.

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

    16

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

  5. 5. Find the mean of 6, 7, 11 and 12.

    9

    Sum = 6 + 7 + 11 + 12 = 36. Divide by 4: 36 ÷ 4 = 9.

  6. 6. Find the mean of 5, 8, 10 and 13.

    9

    Sum = 5 + 8 + 10 + 13 = 36. Divide by 4: 36 ÷ 4 = 9.

  7. 7. Find the mean of 5, 4, 8 and 7.

    6

    Sum = 5 + 4 + 8 + 7 = 24. Divide by 4: 24 ÷ 4 = 6.

  8. 8. Find the mean of 10, 10, 12 and 12.

    11

    Sum = 10 + 10 + 12 + 12 = 44. Divide by 4: 44 ÷ 4 = 11.

  9. 9. Find the mean of 19, 19, 21 and 21.

    20

    Sum = 19 + 19 + 21 + 21 = 80. Divide by 4: 80 ÷ 4 = 20.

  10. 10. Find the mean of 24, 25, 27 and 28.

    26

    Sum = 24 + 25 + 27 + 28 = 104. Divide by 4: 104 ÷ 4 = 26.

  11. 11. Find the mean of 25, 25, 29 and 29.

    27

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

  12. 12. Find the mean of 15, 16, 22 and 23.

    19

    Sum = 15 + 16 + 22 + 23 = 76. Divide by 4: 76 ÷ 4 = 19.

12 questions · Seed 104729 · 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 4, 2, 10 and 8.

    4 · 2 · 10 · 8 · Calculating the mean

  2. 2. Find the mean of 12, 14, 16 and 18.

    12 · 14 · 16 · 18 · Calculating the mean

  3. 3. Find the mean of 17, 21, 23 and 27.

    17 · 21 · 23 · 27 · Calculating the mean

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

    11 · 15 · 17 · 21 · Calculating the mean

  5. 5. Find the mean of 6, 7, 11 and 12.

    6 · 7 · 11 · 12 · Calculating the mean

  6. 6. Find the mean of 5, 8, 10 and 13.

    5 · 8 · 10 · 13 · Calculating the mean

  7. 7. Find the mean of 5, 4, 8 and 7.

    5 · 4 · 8 · 7 · Calculating the mean

  8. 8. Find the mean of 10, 10, 12 and 12.

    10 · 10 · 12 · 12 · Calculating the mean

  9. 9. Find the mean of 19, 19, 21 and 21.

    19 · 19 · 21 · 21 · Calculating the mean

  10. 10. Find the mean of 24, 25, 27 and 28.

    24 · 25 · 27 · 28 · Calculating the mean

  11. 11. Find the mean of 25, 25, 29 and 29.

    25 · 25 · 29 · 29 · Calculating the mean

  12. 12. Find the mean of 15, 16, 22 and 23.

    15 · 16 · 22 · 23 · Calculating the mean
12 questions · Seed 104729 · 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 4, 2, 10 and 8.

    6

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

  2. 2. Find the mean of 12, 14, 16 and 18.

    15

    Sum = 12 + 14 + 16 + 18 = 60. Divide by 4: 60 ÷ 4 = 15.

  3. 3. Find the mean of 17, 21, 23 and 27.

    22

    Sum = 17 + 21 + 23 + 27 = 88. Divide by 4: 88 ÷ 4 = 22.

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

    16

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

  5. 5. Find the mean of 6, 7, 11 and 12.

    9

    Sum = 6 + 7 + 11 + 12 = 36. Divide by 4: 36 ÷ 4 = 9.

  6. 6. Find the mean of 5, 8, 10 and 13.

    9

    Sum = 5 + 8 + 10 + 13 = 36. Divide by 4: 36 ÷ 4 = 9.

  7. 7. Find the mean of 5, 4, 8 and 7.

    6

    Sum = 5 + 4 + 8 + 7 = 24. Divide by 4: 24 ÷ 4 = 6.

  8. 8. Find the mean of 10, 10, 12 and 12.

    11

    Sum = 10 + 10 + 12 + 12 = 44. Divide by 4: 44 ÷ 4 = 11.

  9. 9. Find the mean of 19, 19, 21 and 21.

    20

    Sum = 19 + 19 + 21 + 21 = 80. Divide by 4: 80 ÷ 4 = 20.

  10. 10. Find the mean of 24, 25, 27 and 28.

    26

    Sum = 24 + 25 + 27 + 28 = 104. Divide by 4: 104 ÷ 4 = 26.

  11. 11. Find the mean of 25, 25, 29 and 29.

    27

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

  12. 12. Find the mean of 15, 16, 22 and 23.

    19

    Sum = 15 + 16 + 22 + 23 = 76. Divide by 4: 76 ÷ 4 = 19.

12 questions · Seed 104729 · Age guidance, not curriculum certification