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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 12, 11, 19 and 18.

    12 · 11 · 19 · 18 · Calculating the mean

  2. 2. Find the mean of 26, 27, 29 and 30.

    26 · 27 · 29 · 30 · Calculating the mean

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

    22 · 24 · 30 · 32 · Calculating the mean

  4. 4. Find the mean of 9, 12, 16 and 19.

    9 · 12 · 16 · 19 · Calculating the mean

  5. 5. Find the mean of 13, 17, 19 and 23.

    13 · 17 · 19 · 23 · Calculating the mean

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

    5 · 4 · 8 · 7 · Calculating the mean

  7. 7. Find the mean of 5, 2, 10 and 7.

    5 · 2 · 10 · 7 · Calculating the mean

  8. 8. Find the mean of 20, 22, 24 and 26.

    20 · 22 · 24 · 26 · Calculating the mean

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

    17 · 16 · 22 · 21 · Calculating the mean

  10. 10. Find the mean of 1, 5, 7 and 11.

    1 · 5 · 7 · 11 · Calculating the mean

  11. 11. Find the mean of 16, 17, 25 and 26.

    16 · 17 · 25 · 26 · Calculating the mean

  12. 12. Find the mean of 18, 19, 23 and 24.

    18 · 19 · 23 · 24 · Calculating the mean
12 questions · Seed 49 · 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 12, 11, 19 and 18.

    15

    Sum = 12 + 11 + 19 + 18 = 60. Divide by 4: 60 ÷ 4 = 15.

  2. 2. Find the mean of 26, 27, 29 and 30.

    28

    Sum = 26 + 27 + 29 + 30 = 112. Divide by 4: 112 ÷ 4 = 28.

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

    27

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

  4. 4. Find the mean of 9, 12, 16 and 19.

    14

    Sum = 9 + 12 + 16 + 19 = 56. Divide by 4: 56 ÷ 4 = 14.

  5. 5. Find the mean of 13, 17, 19 and 23.

    18

    Sum = 13 + 17 + 19 + 23 = 72. Divide by 4: 72 ÷ 4 = 18.

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

    6

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

  7. 7. Find the mean of 5, 2, 10 and 7.

    6

    Sum = 5 + 2 + 10 + 7 = 24. Divide by 4: 24 ÷ 4 = 6.

  8. 8. Find the mean of 20, 22, 24 and 26.

    23

    Sum = 20 + 22 + 24 + 26 = 92. Divide by 4: 92 ÷ 4 = 23.

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

    19

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

  10. 10. Find the mean of 1, 5, 7 and 11.

    6

    Sum = 1 + 5 + 7 + 11 = 24. Divide by 4: 24 ÷ 4 = 6.

  11. 11. Find the mean of 16, 17, 25 and 26.

    21

    Sum = 16 + 17 + 25 + 26 = 84. Divide by 4: 84 ÷ 4 = 21.

  12. 12. Find the mean of 18, 19, 23 and 24.

    21

    Sum = 18 + 19 + 23 + 24 = 84. Divide by 4: 84 ÷ 4 = 21.

12 questions · Seed 49 · 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 12, 11, 19 and 18.

    12 · 11 · 19 · 18 · Calculating the mean

  2. 2. Find the mean of 26, 27, 29 and 30.

    26 · 27 · 29 · 30 · Calculating the mean

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

    22 · 24 · 30 · 32 · Calculating the mean

  4. 4. Find the mean of 9, 12, 16 and 19.

    9 · 12 · 16 · 19 · Calculating the mean

  5. 5. Find the mean of 13, 17, 19 and 23.

    13 · 17 · 19 · 23 · Calculating the mean

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

    5 · 4 · 8 · 7 · Calculating the mean

  7. 7. Find the mean of 5, 2, 10 and 7.

    5 · 2 · 10 · 7 · Calculating the mean

  8. 8. Find the mean of 20, 22, 24 and 26.

    20 · 22 · 24 · 26 · Calculating the mean

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

    17 · 16 · 22 · 21 · Calculating the mean

  10. 10. Find the mean of 1, 5, 7 and 11.

    1 · 5 · 7 · 11 · Calculating the mean

  11. 11. Find the mean of 16, 17, 25 and 26.

    16 · 17 · 25 · 26 · Calculating the mean

  12. 12. Find the mean of 18, 19, 23 and 24.

    18 · 19 · 23 · 24 · Calculating the mean
12 questions · Seed 49 · 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 12, 11, 19 and 18.

    15

    Sum = 12 + 11 + 19 + 18 = 60. Divide by 4: 60 ÷ 4 = 15.

  2. 2. Find the mean of 26, 27, 29 and 30.

    28

    Sum = 26 + 27 + 29 + 30 = 112. Divide by 4: 112 ÷ 4 = 28.

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

    27

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

  4. 4. Find the mean of 9, 12, 16 and 19.

    14

    Sum = 9 + 12 + 16 + 19 = 56. Divide by 4: 56 ÷ 4 = 14.

  5. 5. Find the mean of 13, 17, 19 and 23.

    18

    Sum = 13 + 17 + 19 + 23 = 72. Divide by 4: 72 ÷ 4 = 18.

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

    6

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

  7. 7. Find the mean of 5, 2, 10 and 7.

    6

    Sum = 5 + 2 + 10 + 7 = 24. Divide by 4: 24 ÷ 4 = 6.

  8. 8. Find the mean of 20, 22, 24 and 26.

    23

    Sum = 20 + 22 + 24 + 26 = 92. Divide by 4: 92 ÷ 4 = 23.

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

    19

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

  10. 10. Find the mean of 1, 5, 7 and 11.

    6

    Sum = 1 + 5 + 7 + 11 = 24. Divide by 4: 24 ÷ 4 = 6.

  11. 11. Find the mean of 16, 17, 25 and 26.

    21

    Sum = 16 + 17 + 25 + 26 = 84. Divide by 4: 84 ÷ 4 = 21.

  12. 12. Find the mean of 18, 19, 23 and 24.

    21

    Sum = 18 + 19 + 23 + 24 = 84. Divide by 4: 84 ÷ 4 = 21.

12 questions · Seed 49 · Age guidance, not curriculum certification