PARCC Averages and Rounding 2 — Questions and Answers
Question 1: What is the mean of 12, 18, 24, and 30?
- 21 (Correct answer)
- 22
- 20
- 24
Correct answer: 21
The sum is 84 and 84 divided by 4 equals 21.
Question 2: Round 47,832 to the nearest thousand.
- 47,000
- 48,000 (Correct answer)
- 47,800
- 50,000
Correct answer: 48,000
The hundreds digit is 8, so round the thousands up to 48,000.
Question 3: A student's test scores are 80, 90, and 100. What is the average?
- 90 (Correct answer)
- 85
- 95
- 80
Correct answer: 90
The sum 270 divided by 3 equals 90.
Question 4: Round 3.476 to the nearest tenth.
- 3.4
- 3.48
- 3.5 (Correct answer)
- 3.47
Correct answer: 3.5
The hundredths digit is 7, so the tenths place rounds up to 3.5.
Question 5: The mean of 5 numbers is 14. What is their total sum?
- 70 (Correct answer)
- 65
- 19
- 75
Correct answer: 70
Mean times count gives 14 times 5, which equals 70.
Question 6: Round 658 to the nearest hundred.
- 600
- 650
- 700 (Correct answer)
- 660
Correct answer: 700
The tens digit is 5, so round the hundreds up to 700.
Question 7: What is the average of 6 and 14?
- 8
- 10 (Correct answer)
- 12
- 20
Correct answer: 10
The sum 20 divided by 2 equals 10.
PARCC Averages and Rounding 2
What is the mean of 12, 18, 24, and 30?