CBEST Mathematics 3

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?

Accepted Answer

3/8

Answer

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?

Accepted Answer

27°F

Answer

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?

Accepted Answer

30 sq in

Answer

Area = ½ × base × height = ½ × 10 × 6 = 30 sq in.

Question 4

Simplify: 4² + √9

Accepted Answer

19

Answer

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?

Accepted Answer

3/12

Answer

There are 3 blue out of 12 total marbles, so probability = 3/12 = 1/4.

CBEST - California Basic Educational Skills Test Practice Test