MPT Pre-Algebra 2

Question 1

What is the least common multiple (LCM) of 8 and 12?

Accepted Answer

24

Answer

The LCM of 8 and 12 is 24, since 24 is the smallest number divisible by both 8 and 12.

Question 2

Simplify: −3 × (−4) + (−2)

Accepted Answer

10

Answer

−3 × (−4) = 12, then 12 + (−2) = 10.

Question 3

Which of the following is an irrational number?

Accepted Answer

√7

Answer

√7 cannot be expressed as a fraction and its decimal is non-terminating and non-repeating, making it irrational.

Question 4

A store marks up an item by 25%. If the original price is $80, what is the selling price?

Accepted Answer

$100

Answer

25% of $80 is $20, so the selling price is $80 + $20 = $100.

Question 5

Convert 0.375 to a fraction in lowest terms.

Accepted Answer

3/8

Answer

0.375 = 375/1000, which reduces to 3/8 by dividing numerator and denominator by 125.

(MPT) UCF Math Placement Test Practice Test