PARCC Mathematics 3

Question 1

Which expression is equivalent to 2(3x + 4) - x?

Accepted Answer

5x + 8

Answer

Distribute to get 6x + 8 - x = 5x + 8.

Question 2

What is the volume of a cube with edge length 4 inches?

Accepted Answer

64 in³

Answer

Volume = edge³ = 4³ = 64 in³.

Question 3

If a number increased by 8 equals 23, what is the number?

Accepted Answer

15

Answer

n + 8 = 23 gives n = 15.

Question 4

What is the median of the data set 7, 3, 9, 5, 11?

Accepted Answer

7

Answer

Ordered: 3, 5, 7, 9, 11; the middle value is 7.

Question 5

A triangle has angles measuring 50° and 60°. What is the third angle?

Accepted Answer

70°

Answer

Angles sum to 180°, so 180 - 50 - 60 = 70°.

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