Finding a Missing Value from the Mean (Year 9)
Free printable UK Year 9 (Key Stage 3) maths worksheet: use the mean and the known values of a data set to find a missing value, including test-score and temperature word problems.
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Grade 8 · Math worksheet
Name
Date
Math
Finding a Missing Value from the Mean
Use the mean and the known values to find the missing value in each data set.
- 1.The mean of 6 numbers is 13. 5 of the numbers are 6, 6, 9, 11, 9. Find the missing number.
- 2.The mean of 4 numbers is 24. 3 of the numbers are 14, 27, 18. Find the missing number.
- 3.The mean of 4 numbers is 15. 3 of the numbers are 19, 10, 8. Find the missing number.
- 4.The mean of 4 numbers is 33. 3 of the numbers are 27, 40, 41. Find the missing number.
- 5.The mean of 4 numbers is 11. 3 of the numbers are 3, 6, 2. Find the missing number.
- 6.The mean of 6 numbers is 18. 5 of the numbers are 18, 19, 10, 18, 22. Find the missing number.
- 7.The mean of 6 numbers is 28. 5 of the numbers are 19, 18, 27, 24, 23. Find the missing number.
- 8.The mean of 6 numbers is 22. 5 of the numbers are 18, 18, 30, 22, 22. Find the missing number.
- 9.The mean of 4 test scores is 62. 3 of them are 69, 69, 55. Find the missing value.
- 10.The mean of 5 daily temperatures is 8°C. 4 of them are 10°C, 17°C, 1°C, 5°C. Find the missing value.
- 11.The mean of 5 test scores is 56. 4 of them are 54, 65, 64, 66. Find the missing value.
- 12.The mean of 5 daily temperatures is 17°C. 4 of them are 14°C, 9°C, 27°C, 22°C. Find the missing value.
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