CLAST Arithmetic and Number Sense 2

Question 1

Which of the following correctly orders these numbers from least to greatest: 0.5, 3/8, 0.4, 2/5?

Accepted Answer

3/8, 0.4, 2/5, 0.5

Answer

Converting to decimals: 3/8=0.375, 2/5=0.40; order is 0.375, 0.40, 0.40, 0.50 — so 3/8, 0.4, 2/5, 0.5.

Question 2

What is 15% of 240?

Accepted Answer

36

Answer

15% of 240 = 0.15 × 240 = 36.

Question 3

If a number is divisible by both 3 and 4, it must also be divisible by:

Accepted Answer

12

Answer

Since 3 and 4 share no common factors, a number divisible by both must be divisible by their product, 12.

Question 4

What is the absolute value of −15 + 6?

Accepted Answer

9

Answer

−15 + 6 = −9, and the absolute value of −9 is 9.

Question 5

A recipe requires 2½ cups of flour. If you triple the recipe, how many cups do you need?

Accepted Answer

7½

Answer

2½ × 3 = 5/2 × 3 = 15/2 = 7½ cups.

CLAST - College Level Academic Skills Test Practice Test