MDTP Arithmetic and Number Sense 3

Question 1

What is 2³ × 2⁴?

Accepted Answer

2⁷

Answer

2¹²

Answer

4⁷

Answer

4¹²

Question 2

A car travels 240 miles in 4 hours. What is its average speed in miles per hour?

Accepted Answer

60 mph

Answer

40 mph

Answer

50 mph

Answer

80 mph

Question 3

Which is the scientific notation for 0.00047?

Accepted Answer

4.7 × 10⁻⁴

Answer

4.7 × 10³

Answer

4.7 × 10⁻³

Answer

47 × 10⁻⁵

Question 4

If a bag contains 5 red, 3 blue, and 2 green marbles, what fraction of marbles are blue?

Accepted Answer

3/10

Answer

1/5

Answer

3/5

Answer

3/7

Question 5

What is the prime factorization of 60?

Accepted Answer

2² × 3 × 5

Answer

2 × 30

Answer

2² × 15

Answer

4 × 15

Question 6

Which expression represents the number of seconds in 2.5 hours?

Accepted Answer

2.5 × 60 × 60

Answer

2.5 × 60

Answer

2.5 × 3600 ÷ 60

Answer

2.5 × 24 × 60