College Math Placement Test Pre-Algebra 4

Question 1

Simplify the ratio 45:30 to its lowest terms.

Accepted Answer

3:2

Answer

Divide both terms by their GCF of 15: 45÷15 = 3 and 30÷15 = 2, giving 3:2.

Question 2

Which of the following is NOT an integer?

Accepted Answer

3/4

Answer

Integers are whole numbers and their negatives; 3/4 is a fraction and therefore not an integer.

Question 3

A temperature drops from 14°F to −8°F. By how many degrees did it drop?

Accepted Answer

22°

Answer

The change = 14 − (−8) = 14 + 8 = 22 degrees.

Question 4

What is √144?

Accepted Answer

12

Answer

√144 = 12 because 12 × 12 = 144.

Question 5

If 3 notebooks cost $7.50, how much do 7 notebooks cost?

Accepted Answer

$17.50

Answer

Cost per notebook = $7.50 ÷ 3 = $2.50; 7 × $2.50 = $17.50.

College Math Placement Test Practice Test