PARCC Grade 7 Math 3 — Questions and Answers
Question 1: What is -3/4 + 1/2?
- -1/4 (Correct answer)
- 1/4
- -1/2
- -5/4
Correct answer: -1/4
Rewrite 1/2 as 2/4, then -3/4 + 2/4 = -1/4.
Question 2: A map scale shows 1 inch = 25 miles. How many miles do 3.5 inches represent?
- 70 miles
- 75 miles
- 87.5 miles (Correct answer)
- 100 miles
Correct answer: 87.5 miles
Multiply 3.5 × 25 = 87.5 miles.
Question 3: If a number increased by 15% equals 92, what was the original number?
- 77
- 78
- 80 (Correct answer)
- 82
Correct answer: 80
Divide 92 by 1.15 to get 80.
Question 4: What is the surface area concept used to find the area of a rectangle 7 m by 9 m?
- 16 m²
- 32 m²
- 63 m² (Correct answer)
- 72 m²
Correct answer: 63 m²
Area = length × width = 7 × 9 = 63 m².
Question 5: Solve: -2x = 18.
- -9 (Correct answer)
- 9
- -36
- 16
Correct answer: -9
Divide both sides by -2 to get x = -9.
Question 6: Two angles are supplementary. If one measures 65°, what is the other?
- 25°
- 35°
- 115° (Correct answer)
- 125°
Correct answer: 115°
Supplementary angles sum to 180°, so 180 - 65 = 115°.
Question 7: A bag has 3 red, 4 blue, and 5 green marbles. What is the probability of drawing a blue marble?
- 1/4
- 1/3
- 4/12 (Correct answer)
- 5/12
Correct answer: 4/12
There are 12 marbles total and 4 blue, so the probability is 4/12.
