PARCC Averages and Rounding 2

Question 1

What is the mean of 12, 18, 24, and 30?

Accepted Answer

21

Answer

The sum is 84 and 84 divided by 4 equals 21.

Question 2

Round 47,832 to the nearest thousand.

Accepted Answer

48,000

Answer

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?

Accepted Answer

90

Answer

The sum 270 divided by 3 equals 90.

Question 4

Round 3.476 to the nearest tenth.

Accepted Answer

3.5

Answer

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?

Accepted Answer

70

Answer

Mean times count gives 14 times 5, which equals 70.

PARCC Practice Test