West B Math: Number Sense and Operations Questions and Answers

Question 1

A retail item is originally priced at $80.00. It is first discounted by 20%, and then a coupon is applied for an additional 10% off the discounted price. What is the final price of the item?

Accepted Answer

$57.60

Answer

$56.00

Answer

$64.00

Answer

$62.00

Question 2

Which of the following lists correctly orders the numbers from least to greatest?

Accepted Answer

0.35, 3/8, 38%, 2/5

Answer

0.35, 38%, 3/8, 2/5

Answer

3/8, 0.35, 38%, 2/5

Answer

2/5, 38%, 3/8, 0.35

Question 3

What is the value of the expression 5 + 3 * (12 - 4 * 2)² ?

Accepted Answer

53

Answer

128

Answer

149

Answer

17

Question 4

A map has a scale where 1.5 inches represents 40 miles. If the distance between two cities on the map is 5.25 inches, what is the actual distance between the cities in miles?

Accepted Answer

140 miles

Answer

105 miles

Answer

160 miles

Answer

125 miles

Question 5

The diameter of a specific virus is approximately 0.00000008 meters. How would this number be expressed in scientific notation?

Accepted Answer

8 x 10⁻⁸ m

Answer

8 x 10⁸ m

Answer

0.8 x 10⁻⁷ m

Answer

8 x 10⁻⁷ m

Question 6

Which of the following is a prime number?

Accepted Answer

73

Answer

87

Answer

51

Answer

91