ParaPro Math 4 — Questions and Answers
Question 1: A classroom has 24 students. If 3/8 of the students are in the reading group, how many students are NOT in the reading group?
- 9
- 12
- 15 (Correct answer)
- 18
Correct answer: 15
3/8 of 24 = 9 students in the reading group, so 24 − 9 = 15 are not.
Question 2: A number line shows points at −3, 0, and 4. What is the distance between the points at −3 and 4?
- 1
- 3
- 4
- 7 (Correct answer)
Correct answer: 7
Distance = 4 − (−3) = 4 + 3 = 7.
Question 3: Which expression is equivalent to 5(3 + 2)?
- 5 × 3 + 2
- 5 × 3 + 5 × 2 (Correct answer)
- 5 + 3 × 2
- 15 + 2
Correct answer: 5 × 3 + 5 × 2
By the distributive property, 5(3 + 2) = 5 × 3 + 5 × 2 = 15 + 10 = 25.
Question 4: A student scores 82, 76, 90, and 88 on four tests. What is the student's average (mean) score?
- 82
- 83
- 84
- 85 (Correct answer)
Correct answer: 85
(82 + 76 + 90 + 88) ÷ 4 = 336 ÷ 4 = 84.
Question 5: Which of the following is a prime number?
- 21
- 27
- 33
- 37 (Correct answer)
Correct answer: 37
37 has no factors other than 1 and itself; the others are divisible by 3 or 7.
Question 6: A rectangle has a length of 12 cm and a width of 7 cm. What is its perimeter?
- 19 cm
- 38 cm (Correct answer)
- 84 cm
- 48 cm
Correct answer: 38 cm
Perimeter = 2(length + width) = 2(12 + 7) = 2(19) = 38 cm.
Question 7: If x − 9 = 15, what is the value of x?
- 6
- 14
- 24 (Correct answer)
- 135
Correct answer: 24
Add 9 to both sides: x = 15 + 9 = 24.
ParaPro Math 4
A classroom has 24 students.
If 3/8 of the students are in the reading group, how many students are NOT in the reading group?