PARCC Mathematics 3 ā Questions and Answers
Question 1: Which expression is equivalent to 2(3x + 4) - x?
- 5x + 8 (Correct answer)
- 6x + 8
- 5x + 4
- 7x + 8
Correct answer: 5x + 8
Distribute to get 6x + 8 - x = 5x + 8.
Question 2: What is the volume of a cube with edge length 4 inches?
- 64 inĀ³ (Correct answer)
- 16 inĀ³
- 48 inĀ³
- 12 inĀ³
Correct answer: 64 inĀ³
Volume = edgeĀ³ = 4Ā³ = 64 inĀ³.
Question 3: If a number increased by 8 equals 23, what is the number?
- 15 (Correct answer)
- 31
- 16
- 14
Correct answer: 15
n + 8 = 23 gives n = 15.
Question 4: What is the median of the data set 7, 3, 9, 5, 11?
- 7 (Correct answer)
- 5
- 9
- 8
Correct answer: 7
Ordered: 3, 5, 7, 9, 11; the middle value is 7.
Question 5: A triangle has angles measuring 50Ā° and 60Ā°. What is the third angle?
- 70Ā° (Correct answer)
- 80Ā°
- 110Ā°
- 60Ā°
Correct answer: 70Ā°
Angles sum to 180Ā°, so 180 - 50 - 60 = 70Ā°.
Question 6: Simplify: 5/6 - 1/3.
- 1/2 (Correct answer)
- 4/3
- 1/3
- 2/3
Correct answer: 1/2
1/3 = 2/6, so 5/6 - 2/6 = 3/6 = 1/2.
Question 7: A car travels 150 miles in 3 hours. What is its average speed?
- 50 mph (Correct answer)
- 45 mph
- 60 mph
- 30 mph
Correct answer: 50 mph
Speed = distance Ć· time = 150 Ć· 3 = 50 mph.
PARCC Mathematics 3
Which expression is equivalent to 2(3x + 4) - x?