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Find the new mean after adding a value

Grade 6 math · Fieldbook Learning

Name ______________________ Date __________

Find the old total, add the new number, and divide by the new count.

  1. The mean of 5 numbers is 9. A new number, 3, is added. What is the mean of all 6 numbers?
  2. The mean of 5 numbers is 9. A new number, 15, is added. What is the mean of all 6 numbers?
  3. The mean of 4 numbers is 5. A new number, 15, is added. What is the mean of all 5 numbers?
  4. The mean of 3 numbers is 7. A new number, 19, is added. What is the mean of all 4 numbers?
  5. The mean of 6 numbers is 15. A new number, 8, is added. What is the mean of all 7 numbers?
  6. The mean of 6 numbers is 9. A new number, 2, is added. What is the mean of all 7 numbers?
  7. The mean of 5 numbers is 18. A new number, 24, is added. What is the mean of all 6 numbers?
  8. The mean of 5 numbers is 7. A new number, 25, is added. What is the mean of all 6 numbers?
  9. The mean of 8 numbers is 27. A new number, 0, is added. What is the mean of all 9 numbers?
  10. The mean of 5 numbers is 26. A new number, 38, is added. What is the mean of all 6 numbers?
  11. The mean of 7 numbers is 29. A new number, 61, is added. What is the mean of all 8 numbers?
  12. The mean of 8 numbers is 22. A new number, 31, is added. What is the mean of all 9 numbers?
  13. The mean of 7 numbers is 57. A new number, 33, is added. What is the mean of all 8 numbers?
  14. The mean of 6 numbers is 29. A new number, 57, is added. What is the mean of all 7 numbers?
  15. The mean of 10 numbers is 34. A new number, 23, is added. What is the mean of all 11 numbers?
  16. The mean of 8 numbers is 53. A new number, 89, is added. What is the mean of all 9 numbers?
  17. The mean of 14 numbers is 70. A new number, 40, is added. What is the mean of all 15 numbers?
  18. The mean of 11 numbers is 61. A new number, 37, is added. What is the mean of all 12 numbers?
  19. The mean of 15 numbers is 82. A new number, 98, is added. What is the mean of all 16 numbers?
  20. The mean of 14 numbers is 93. A new number, 78, is added. What is the mean of all 15 numbers?
More free practice: fieldbooklearning.com/ca/practice/grade-6/mean-after-adding-a-value/

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20 of these questions as multiple choice, with near-miss wrong answers, ready for Kahoot or Blooket.

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  2. Click the matching button below, then click the first empty question row of the template and paste.
  3. Save the template (Kahoot needs .xlsx, Blooket .csv) and upload it.
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Answer key: Find the new mean after adding a value

  1. 8
  2. 10
  3. 7
  4. 10
  5. 14
  6. 8
  7. 19
  8. 10
  9. 24
  10. 28
  11. 33
  12. 23
  13. 54
  14. 33
  15. 33
  16. 57
  17. 68
  18. 59
  19. 83
  20. 92