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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 20, 20, 26 and 26.

    20 · 20 · 26 · 26 · Calculating the mean

  2. 2. Find the mean of 13, 12, 18 and 17.

    13 · 12 · 18 · 17 · Calculating the mean

  3. 3. Find the mean of 8, 8, 14 and 14.

    8 · 8 · 14 · 14 · Calculating the mean

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

    24 · 24 · 26 · 26 · Calculating the mean

  5. 5. Find the mean of 28, 26, 32 and 30.

    28 · 26 · 32 · 30 · Calculating the mean

  6. 6. Find the mean of 3, 5, 11 and 13.

    3 · 5 · 11 · 13 · Calculating the mean

  7. 7. Find the mean of 15, 15, 19 and 19.

    15 · 15 · 19 · 19 · Calculating the mean

  8. 8. Find the mean of 6, 5, 13 and 12.

    6 · 5 · 13 · 12 · Calculating the mean

  9. 9. Find the mean of 20, 22, 26 and 28.

    20 · 22 · 26 · 28 · Calculating the mean

  10. 10. Find the mean of 13, 14, 16 and 17.

    13 · 14 · 16 · 17 · Calculating the mean

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

    10 · 10 · 12 · 12 · Calculating the mean

  12. 12. Find the mean of 22, 25, 27 and 30.

    22 · 25 · 27 · 30 · Calculating the mean
12 questions · Seed 104732 · 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 20, 20, 26 and 26.

    23

    Sum = 20 + 20 + 26 + 26 = 92. Divide by 4: 92 ÷ 4 = 23.

  2. 2. Find the mean of 13, 12, 18 and 17.

    15

    Sum = 13 + 12 + 18 + 17 = 60. Divide by 4: 60 ÷ 4 = 15.

  3. 3. Find the mean of 8, 8, 14 and 14.

    11

    Sum = 8 + 8 + 14 + 14 = 44. Divide by 4: 44 ÷ 4 = 11.

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

    25

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

  5. 5. Find the mean of 28, 26, 32 and 30.

    29

    Sum = 28 + 26 + 32 + 30 = 116. Divide by 4: 116 ÷ 4 = 29.

  6. 6. Find the mean of 3, 5, 11 and 13.

    8

    Sum = 3 + 5 + 11 + 13 = 32. Divide by 4: 32 ÷ 4 = 8.

  7. 7. Find the mean of 15, 15, 19 and 19.

    17

    Sum = 15 + 15 + 19 + 19 = 68. Divide by 4: 68 ÷ 4 = 17.

  8. 8. Find the mean of 6, 5, 13 and 12.

    9

    Sum = 6 + 5 + 13 + 12 = 36. Divide by 4: 36 ÷ 4 = 9.

  9. 9. Find the mean of 20, 22, 26 and 28.

    24

    Sum = 20 + 22 + 26 + 28 = 96. Divide by 4: 96 ÷ 4 = 24.

  10. 10. Find the mean of 13, 14, 16 and 17.

    15

    Sum = 13 + 14 + 16 + 17 = 60. Divide by 4: 60 ÷ 4 = 15.

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

    11

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

  12. 12. Find the mean of 22, 25, 27 and 30.

    26

    Sum = 22 + 25 + 27 + 30 = 104. Divide by 4: 104 ÷ 4 = 26.

12 questions · Seed 104732 · 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 20, 20, 26 and 26.

    20 · 20 · 26 · 26 · Calculating the mean

  2. 2. Find the mean of 13, 12, 18 and 17.

    13 · 12 · 18 · 17 · Calculating the mean

  3. 3. Find the mean of 8, 8, 14 and 14.

    8 · 8 · 14 · 14 · Calculating the mean

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

    24 · 24 · 26 · 26 · Calculating the mean

  5. 5. Find the mean of 28, 26, 32 and 30.

    28 · 26 · 32 · 30 · Calculating the mean

  6. 6. Find the mean of 3, 5, 11 and 13.

    3 · 5 · 11 · 13 · Calculating the mean

  7. 7. Find the mean of 15, 15, 19 and 19.

    15 · 15 · 19 · 19 · Calculating the mean

  8. 8. Find the mean of 6, 5, 13 and 12.

    6 · 5 · 13 · 12 · Calculating the mean

  9. 9. Find the mean of 20, 22, 26 and 28.

    20 · 22 · 26 · 28 · Calculating the mean

  10. 10. Find the mean of 13, 14, 16 and 17.

    13 · 14 · 16 · 17 · Calculating the mean

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

    10 · 10 · 12 · 12 · Calculating the mean

  12. 12. Find the mean of 22, 25, 27 and 30.

    22 · 25 · 27 · 30 · Calculating the mean
12 questions · Seed 104732 · 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 20, 20, 26 and 26.

    23

    Sum = 20 + 20 + 26 + 26 = 92. Divide by 4: 92 ÷ 4 = 23.

  2. 2. Find the mean of 13, 12, 18 and 17.

    15

    Sum = 13 + 12 + 18 + 17 = 60. Divide by 4: 60 ÷ 4 = 15.

  3. 3. Find the mean of 8, 8, 14 and 14.

    11

    Sum = 8 + 8 + 14 + 14 = 44. Divide by 4: 44 ÷ 4 = 11.

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

    25

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

  5. 5. Find the mean of 28, 26, 32 and 30.

    29

    Sum = 28 + 26 + 32 + 30 = 116. Divide by 4: 116 ÷ 4 = 29.

  6. 6. Find the mean of 3, 5, 11 and 13.

    8

    Sum = 3 + 5 + 11 + 13 = 32. Divide by 4: 32 ÷ 4 = 8.

  7. 7. Find the mean of 15, 15, 19 and 19.

    17

    Sum = 15 + 15 + 19 + 19 = 68. Divide by 4: 68 ÷ 4 = 17.

  8. 8. Find the mean of 6, 5, 13 and 12.

    9

    Sum = 6 + 5 + 13 + 12 = 36. Divide by 4: 36 ÷ 4 = 9.

  9. 9. Find the mean of 20, 22, 26 and 28.

    24

    Sum = 20 + 22 + 26 + 28 = 96. Divide by 4: 96 ÷ 4 = 24.

  10. 10. Find the mean of 13, 14, 16 and 17.

    15

    Sum = 13 + 14 + 16 + 17 = 60. Divide by 4: 60 ÷ 4 = 15.

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

    11

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

  12. 12. Find the mean of 22, 25, 27 and 30.

    26

    Sum = 22 + 25 + 27 + 30 = 104. Divide by 4: 104 ÷ 4 = 26.

12 questions · Seed 104732 · Age guidance, not curriculum certification