CLAST Mathematics Practice Questions

1. What percent of 38 is 16?
A: 42%
B: 40%
C: 35%
D: 38%

2. Solve: 3/5 - (-2) =
A: -12/5
B: 5/13
C: -13/5
D: 13/5

3. Solve: 3 1/5 x 5 =
A: 14
B: 15 1/2
C: 10 5/15
D: 16

4. 17/68 =
A: 30%
B: 1/3
C: 45%
D: 1/4

5. The five starters on a basketball team each scored at least 5 points and no more than 17 points in a basketball game. Which of the following values is a reasonable estimate of the average score of each player?
A: 6
B: 17
C: 12
D: 22

6. Identify the missing term in the following geometric progression: 16, -4, ¼, ____
A: 1/8
B: 2/6
C: -1/8
D: -2/6

7. What is the volume of a rectangular solid that is 8 inches long, 6 inches wide, and 4 inches tall?
A: 192 cubic inches
B: 184 cubic inches
C: 194 square inches
D: 192 square inches

8. Which of the following units of measurement would not be used to report the length of a pencil?
A: inches
B: centimeters
C: millimeters
D: liters

9. 12x - 4x + 8 =
A: 16x
B: 10x
C: x
D: 8x + 8

10. If 5x + 7 = 8x - 2, then
A: x = 5
B: x = 3
C: x = 4
D: x = 2

Answer Key

1. A. Divide 16 by 38 and multiply by 100.

2. D. Subtracting a negative number is the same as adding it.

3. D. Before multiplying, convert the mixed number to an improper fraction.

4. D. The simplest form of this fraction can be found by dividing both sides by 17.

5. C. It is reasonable to assume that the average score will be close to the middle of the range.

6. C. Each successive term is found by dividing the previous term by -2.

7. A. Volume is found by multiplying length, width, and height.

8. D. Liters are a unit of volume, not length.

9. D. Remember that unlike terms cannot be combined.

10. B. Solve the equation for x by subtracting 5x from both sides, adding 2 to both sides, and then dividing both sides by 3.

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