IMSA Number Theory and Arithmetic 3

Question 1

If a number is divisible by 6, it must also be divisible by:

Accepted Answer

2 and 3

Answer

2 and 4

Answer

3 and 4

Answer

4 and 6

Question 2

What is the value of −2 + (−5) − (−3)?

Accepted Answer

−4

Answer

−10

Answer

4

Answer

−7

Question 3

A number squared equals 196. What is the number? (positive value)

Accepted Answer

14

Answer

13

Answer

15

Answer

16

Question 4

What is 3/8 + 5/12?

Accepted Answer

19/24

Answer

8/20

Answer

1/2

Answer

3/4

Question 5

Which of the following represents the number 45 written as a product of prime factors?

Accepted Answer

3² × 5

Answer

3 × 15

Answer

5 × 9

Answer

3 × 5²

Question 6

What is 40% of 250?

Accepted Answer

100

Answer

40

Answer

150

Answer

10