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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 9, 10, 16 and 17.

    9 · 10 · 16 · 17 · Calculating the mean

  2. 2. Find the mean of 25, 26, 34 and 35.

    25 · 26 · 34 · 35 · Calculating the mean

  3. 3. Find the mean of 24, 24, 26 and 26.

    24 · 24 · 26 · 26 · Calculating the mean

  4. 4. Find the mean of 8, 10, 14 and 16.

    8 · 10 · 14 · 16 · Calculating the mean

  5. 5. Find the mean of 22, 24, 30 and 32.

    22 · 24 · 30 · 32 · Calculating the mean

  6. 6. Find the mean of 13, 14, 18 and 19.

    13 · 14 · 18 · 19 · Calculating the mean

  7. 7. Find the mean of 14, 18, 20 and 24.

    14 · 18 · 20 · 24 · Calculating the mean

  8. 8. Find the mean of 29, 28, 32 and 31.

    29 · 28 · 32 · 31 · Calculating the mean

  9. 9. Find the mean of 13, 11, 19 and 17.

    13 · 11 · 19 · 17 · Calculating the mean

  10. 10. Find the mean of 23, 24, 26 and 27.

    23 · 24 · 26 · 27 · Calculating the mean

  11. 11. Find the mean of 24, 23, 31 and 30.

    24 · 23 · 31 · 30 · Calculating the mean

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

    25 · 23 · 31 · 29 · Calculating the mean
12 questions · Seed 46 · 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 9, 10, 16 and 17.

    13

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

  2. 2. Find the mean of 25, 26, 34 and 35.

    30

    Sum = 25 + 26 + 34 + 35 = 120. Divide by 4: 120 ÷ 4 = 30.

  3. 3. Find the mean of 24, 24, 26 and 26.

    25

    Sum = 24 + 24 + 26 + 26 = 100. Divide by 4: 100 ÷ 4 = 25.

  4. 4. Find the mean of 8, 10, 14 and 16.

    12

    Sum = 8 + 10 + 14 + 16 = 48. Divide by 4: 48 ÷ 4 = 12.

  5. 5. Find the mean of 22, 24, 30 and 32.

    27

    Sum = 22 + 24 + 30 + 32 = 108. Divide by 4: 108 ÷ 4 = 27.

  6. 6. Find the mean of 13, 14, 18 and 19.

    16

    Sum = 13 + 14 + 18 + 19 = 64. Divide by 4: 64 ÷ 4 = 16.

  7. 7. Find the mean of 14, 18, 20 and 24.

    19

    Sum = 14 + 18 + 20 + 24 = 76. Divide by 4: 76 ÷ 4 = 19.

  8. 8. Find the mean of 29, 28, 32 and 31.

    30

    Sum = 29 + 28 + 32 + 31 = 120. Divide by 4: 120 ÷ 4 = 30.

  9. 9. Find the mean of 13, 11, 19 and 17.

    15

    Sum = 13 + 11 + 19 + 17 = 60. Divide by 4: 60 ÷ 4 = 15.

  10. 10. Find the mean of 23, 24, 26 and 27.

    25

    Sum = 23 + 24 + 26 + 27 = 100. Divide by 4: 100 ÷ 4 = 25.

  11. 11. Find the mean of 24, 23, 31 and 30.

    27

    Sum = 24 + 23 + 31 + 30 = 108. Divide by 4: 108 ÷ 4 = 27.

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

    27

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

12 questions · Seed 46 · 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 9, 10, 16 and 17.

    9 · 10 · 16 · 17 · Calculating the mean

  2. 2. Find the mean of 25, 26, 34 and 35.

    25 · 26 · 34 · 35 · Calculating the mean

  3. 3. Find the mean of 24, 24, 26 and 26.

    24 · 24 · 26 · 26 · Calculating the mean

  4. 4. Find the mean of 8, 10, 14 and 16.

    8 · 10 · 14 · 16 · Calculating the mean

  5. 5. Find the mean of 22, 24, 30 and 32.

    22 · 24 · 30 · 32 · Calculating the mean

  6. 6. Find the mean of 13, 14, 18 and 19.

    13 · 14 · 18 · 19 · Calculating the mean

  7. 7. Find the mean of 14, 18, 20 and 24.

    14 · 18 · 20 · 24 · Calculating the mean

  8. 8. Find the mean of 29, 28, 32 and 31.

    29 · 28 · 32 · 31 · Calculating the mean

  9. 9. Find the mean of 13, 11, 19 and 17.

    13 · 11 · 19 · 17 · Calculating the mean

  10. 10. Find the mean of 23, 24, 26 and 27.

    23 · 24 · 26 · 27 · Calculating the mean

  11. 11. Find the mean of 24, 23, 31 and 30.

    24 · 23 · 31 · 30 · Calculating the mean

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

    25 · 23 · 31 · 29 · Calculating the mean
12 questions · Seed 46 · 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 9, 10, 16 and 17.

    13

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

  2. 2. Find the mean of 25, 26, 34 and 35.

    30

    Sum = 25 + 26 + 34 + 35 = 120. Divide by 4: 120 ÷ 4 = 30.

  3. 3. Find the mean of 24, 24, 26 and 26.

    25

    Sum = 24 + 24 + 26 + 26 = 100. Divide by 4: 100 ÷ 4 = 25.

  4. 4. Find the mean of 8, 10, 14 and 16.

    12

    Sum = 8 + 10 + 14 + 16 = 48. Divide by 4: 48 ÷ 4 = 12.

  5. 5. Find the mean of 22, 24, 30 and 32.

    27

    Sum = 22 + 24 + 30 + 32 = 108. Divide by 4: 108 ÷ 4 = 27.

  6. 6. Find the mean of 13, 14, 18 and 19.

    16

    Sum = 13 + 14 + 18 + 19 = 64. Divide by 4: 64 ÷ 4 = 16.

  7. 7. Find the mean of 14, 18, 20 and 24.

    19

    Sum = 14 + 18 + 20 + 24 = 76. Divide by 4: 76 ÷ 4 = 19.

  8. 8. Find the mean of 29, 28, 32 and 31.

    30

    Sum = 29 + 28 + 32 + 31 = 120. Divide by 4: 120 ÷ 4 = 30.

  9. 9. Find the mean of 13, 11, 19 and 17.

    15

    Sum = 13 + 11 + 19 + 17 = 60. Divide by 4: 60 ÷ 4 = 15.

  10. 10. Find the mean of 23, 24, 26 and 27.

    25

    Sum = 23 + 24 + 26 + 27 = 100. Divide by 4: 100 ÷ 4 = 25.

  11. 11. Find the mean of 24, 23, 31 and 30.

    27

    Sum = 24 + 23 + 31 + 30 = 108. Divide by 4: 108 ÷ 4 = 27.

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

    27

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

12 questions · Seed 46 · Age guidance, not curriculum certification