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MathsAges 10-12

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 10-12

Calculating the mean

Take your time. Show your thinking.

  1. 1. Find the mean of 11, 12, 18 and 19.

    11 · 12 · 18 · 19 · Calculating the mean

  2. 2. Find the mean of 12, 13, 19 and 20.

    12 · 13 · 19 · 20 · Calculating the mean

  3. 3. Find the mean of 16, 15, 19 and 18.

    16 · 15 · 19 · 18 · Calculating the mean

  4. 4. Find the mean of 16, 20, 22 and 26.

    16 · 20 · 22 · 26 · Calculating the mean

  5. 5. Find the mean of 25, 24, 30 and 29.

    25 · 24 · 30 · 29 · Calculating the mean

  6. 6. Find the mean of 8, 9, 15 and 16.

    8 · 9 · 15 · 16 · Calculating the mean

  7. 7. Find the mean of 11, 9, 17 and 15.

    11 · 9 · 17 · 15 · Calculating the mean

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

    27 · 26 · 30 · 29 · Calculating the mean

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

    13 · 14 · 16 · 17 · Calculating the mean

  10. 10. Find the mean of 10, 12, 16 and 18.

    10 · 12 · 16 · 18 · Calculating the mean

  11. 11. Find the mean of 6, 7, 15 and 16.

    6 · 7 · 15 · 16 · Calculating the mean

  12. 12. Find the mean of 17, 16, 24 and 23.

    17 · 16 · 24 · 23 · Calculating the mean
12 questions · Seed 50 · Age guidance, not curriculum certification
View the answer key
Worksheet StudioAnswer key · Ages 10-12

Calculating the mean

Answers and reasoning. Review before teaching.

  1. 1. Find the mean of 11, 12, 18 and 19.

    15

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

  2. 2. Find the mean of 12, 13, 19 and 20.

    16

    Sum = 12 + 13 + 19 + 20 = 64. Divide by 4: 64 ÷ 4 = 16.

  3. 3. Find the mean of 16, 15, 19 and 18.

    17

    Sum = 16 + 15 + 19 + 18 = 68. Divide by 4: 68 ÷ 4 = 17.

  4. 4. Find the mean of 16, 20, 22 and 26.

    21

    Sum = 16 + 20 + 22 + 26 = 84. Divide by 4: 84 ÷ 4 = 21.

  5. 5. Find the mean of 25, 24, 30 and 29.

    27

    Sum = 25 + 24 + 30 + 29 = 108. Divide by 4: 108 ÷ 4 = 27.

  6. 6. Find the mean of 8, 9, 15 and 16.

    12

    Sum = 8 + 9 + 15 + 16 = 48. Divide by 4: 48 ÷ 4 = 12.

  7. 7. Find the mean of 11, 9, 17 and 15.

    13

    Sum = 11 + 9 + 17 + 15 = 52. Divide by 4: 52 ÷ 4 = 13.

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

    28

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

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

    15

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

  10. 10. Find the mean of 10, 12, 16 and 18.

    14

    Sum = 10 + 12 + 16 + 18 = 56. Divide by 4: 56 ÷ 4 = 14.

  11. 11. Find the mean of 6, 7, 15 and 16.

    11

    Sum = 6 + 7 + 15 + 16 = 44. Divide by 4: 44 ÷ 4 = 11.

  12. 12. Find the mean of 17, 16, 24 and 23.

    20

    Sum = 17 + 16 + 24 + 23 = 80. Divide by 4: 80 ÷ 4 = 20.

12 questions · Seed 50 · Age guidance, not curriculum certification
Worksheet StudioPractice pack · Ages 10-12

Calculating the mean

Take your time. Show your thinking.

  1. 1. Find the mean of 11, 12, 18 and 19.

    11 · 12 · 18 · 19 · Calculating the mean

  2. 2. Find the mean of 12, 13, 19 and 20.

    12 · 13 · 19 · 20 · Calculating the mean

  3. 3. Find the mean of 16, 15, 19 and 18.

    16 · 15 · 19 · 18 · Calculating the mean

  4. 4. Find the mean of 16, 20, 22 and 26.

    16 · 20 · 22 · 26 · Calculating the mean

  5. 5. Find the mean of 25, 24, 30 and 29.

    25 · 24 · 30 · 29 · Calculating the mean

  6. 6. Find the mean of 8, 9, 15 and 16.

    8 · 9 · 15 · 16 · Calculating the mean

  7. 7. Find the mean of 11, 9, 17 and 15.

    11 · 9 · 17 · 15 · Calculating the mean

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

    27 · 26 · 30 · 29 · Calculating the mean

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

    13 · 14 · 16 · 17 · Calculating the mean

  10. 10. Find the mean of 10, 12, 16 and 18.

    10 · 12 · 16 · 18 · Calculating the mean

  11. 11. Find the mean of 6, 7, 15 and 16.

    6 · 7 · 15 · 16 · Calculating the mean

  12. 12. Find the mean of 17, 16, 24 and 23.

    17 · 16 · 24 · 23 · Calculating the mean
12 questions · Seed 50 · Age guidance, not curriculum certification
Worksheet StudioAnswer key · Ages 10-12

Calculating the mean

Answers and reasoning. Review before teaching.

  1. 1. Find the mean of 11, 12, 18 and 19.

    15

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

  2. 2. Find the mean of 12, 13, 19 and 20.

    16

    Sum = 12 + 13 + 19 + 20 = 64. Divide by 4: 64 ÷ 4 = 16.

  3. 3. Find the mean of 16, 15, 19 and 18.

    17

    Sum = 16 + 15 + 19 + 18 = 68. Divide by 4: 68 ÷ 4 = 17.

  4. 4. Find the mean of 16, 20, 22 and 26.

    21

    Sum = 16 + 20 + 22 + 26 = 84. Divide by 4: 84 ÷ 4 = 21.

  5. 5. Find the mean of 25, 24, 30 and 29.

    27

    Sum = 25 + 24 + 30 + 29 = 108. Divide by 4: 108 ÷ 4 = 27.

  6. 6. Find the mean of 8, 9, 15 and 16.

    12

    Sum = 8 + 9 + 15 + 16 = 48. Divide by 4: 48 ÷ 4 = 12.

  7. 7. Find the mean of 11, 9, 17 and 15.

    13

    Sum = 11 + 9 + 17 + 15 = 52. Divide by 4: 52 ÷ 4 = 13.

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

    28

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

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

    15

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

  10. 10. Find the mean of 10, 12, 16 and 18.

    14

    Sum = 10 + 12 + 16 + 18 = 56. Divide by 4: 56 ÷ 4 = 14.

  11. 11. Find the mean of 6, 7, 15 and 16.

    11

    Sum = 6 + 7 + 15 + 16 = 44. Divide by 4: 44 ÷ 4 = 11.

  12. 12. Find the mean of 17, 16, 24 and 23.

    20

    Sum = 17 + 16 + 24 + 23 = 80. Divide by 4: 80 ÷ 4 = 20.

12 questions · Seed 50 · Age guidance, not curriculum certification