CBEST Mathematics 3 — Questions and Answers
Question 1: A pizza is cut into 8 equal slices. If Maria eats 3 slices and Tom eats 2 slices, what fraction of the pizza remains?
- 3/8 (Correct answer)
- 5/8
- 1/2
- 3/4
Correct answer: 3/8
5 slices are eaten, leaving 3 out of 8, or 3/8.
Question 2: The temperature dropped from 45°F to 18°F overnight. By how many degrees did it drop?
- 23°F
- 25°F
- 27°F (Correct answer)
- 29°F
Correct answer: 27°F
45 − 18 = 27°F.
Question 3: What is the area of a triangle with a base of 10 inches and a height of 6 inches?
- 30 sq in (Correct answer)
- 40 sq in
- 60 sq in
- 16 sq in
Correct answer: 30 sq in
Area = ½ × base × height = ½ × 10 × 6 = 30 sq in.
Question 4: Simplify: 4² + √9
- 13
- 16
- 19 (Correct answer)
- 25
Correct answer: 19
4² = 16 and √9 = 3, so 16 + 3 = 19.
Question 5: A bag contains 4 red, 3 blue, and 5 green marbles. What is the probability of randomly picking a blue marble?
- 1/4
- 3/12 (Correct answer)
- 5/12
- 1/3
Correct answer: 3/12
There are 3 blue out of 12 total marbles, so probability = 3/12 = 1/4.
Question 6: Which expression is equivalent to 2(x + 5) − 3?
- 2x + 7 (Correct answer)
- 2x + 3
- 2x − 3
- 2x + 10
Correct answer: 2x + 7
2(x + 5) − 3 = 2x + 10 − 3 = 2x + 7.
Question 7: A recipe uses 2½ cups of flour for 24 cookies. How many cups are needed for 48 cookies?
- 4 cups
- 5 cups (Correct answer)
- 4½ cups
- 6 cups
Correct answer: 5 cups
Doubling the recipe means 2 × 2½ = 5 cups of flour.
CBEST Mathematics 3
A pizza is cut into 8 equal slices.
If Maria eats 3 slices and Tom eats 2 slices, what fraction of the pizza remains?