Form 11: Finding Missing Values Given the Mean Exercise

Form 11: Finding Missing Values Given the Mean

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Form 11: Finding Missing Values Given the Mean

Find missing values in a data set when given the overall mean. Use arithmetic reasoning to solve for unknown data points.

Questions

  1. MultiChoice

    The mean of three numbers is 8. Two of the numbers are 6 and 8. What is the third number?

  2. MultiChoice

    The mean of 5, 10, and x is 10. What is the value of x?

  3. MultiChoice

    The mean of four numbers is 10. Three of the numbers are 6, 8, and 10. Find the fourth number.

  4. MultiChoice

    Sam's test scores are 80 and 85. What score does he need on the 3rd test to get a mean of 85?

  5. MultiChoice

    The mean of 3, 5, and x is 5. Find x.

  6. MultiChoice

    The mean of 10, 15, and x is 15. What is x?

  7. MultiChoice

    The mean of 4 numbers is 6. Three of the numbers are 2, 4, and 6. Find the missing number.

  8. MultiChoice

    The mean of 10, 20, and x is 20. Find x.

  9. MultiChoice

    To have a mean score of 90 on 3 quizzes, if your first two scores are 85 and 85, what must the 3rd score be?

  10. MultiChoice

    The mean of 6, 10, and x is 10. Find x.

  11. MultiChoice

    The mean of 12, 15, and x is 15. What is x?

  12. MultiChoice

    The mean of four numbers is 5. Three numbers are 3, 4, and 5. Find the fourth number.