OAR OAR Math Skills: Arithmetic and Number Operations

Question 1

What is the value of 3/4 + 5/8?

Accepted Answer

11/8

Answer

8/12

Answer

1/2

Answer

7/8

Question 2

A sailor earns $2,400 per month. If 25% is withheld for taxes, what is the take-home pay?

Accepted Answer

$1,800

Answer

$1,600

Answer

$2,000

Answer

$1,200

Question 3

What is 0.045 expressed as a percentage?

Accepted Answer

4.5%

Answer

0.45%

Answer

45%

Answer

0.045%

Question 4

Which of the following is the greatest common factor (GCF) of 48 and 36?

Accepted Answer

12

Answer

6

Answer

18

Answer

9

Question 5

If a ship travels 240 nautical miles in 8 hours, what is its average speed in knots?

Accepted Answer

30 knots

Answer

24 knots

Answer

32 knots

Answer

28 knots

Question 6

What is the least common multiple (LCM) of 4, 6, and 9?

Accepted Answer

36

Answer

18

Answer

24

Answer

72