College Math Placement Test Pre-Algebra 3

Question 1

Which of the following is a prime number?

Accepted Answer

61

Answer

61 is prime because it has no divisors other than 1 and itself; 51=3×17, 57=3×19, and 63=9×7.

Question 2

Convert 2 3/4 to an improper fraction.

Accepted Answer

11/4

Answer

2 3/4 = (2×4 + 3)/4 = 11/4.

Question 3

What is 15% of 200?

Accepted Answer

30

Answer

15% of 200 = 0.15 × 200 = 30.

Question 4

Solve for x: x/5 = 9

Accepted Answer

45

Answer

Multiply both sides by 5: x = 9 × 5 = 45.

Question 5

Which set of numbers is ordered from least to greatest?

Accepted Answer

−5, −2, 0, 3

Answer

On the number line, −5 < −2 < 0 < 3, so −5, −2, 0, 3 is the correct order.

College Math Placement Test Practice Test