Which of these numbers is not prime?

• 17

• 25

• 23

• 37

Which number is NOT a multiple of 4?

• 68

• 36

• 46

• 80

Name the prime number between 10 and 20 that is missing from the list: 11, 13, 19

Alex listed the first four multiples of 7 as 7, 14, 22, 28

Which number in their list is incorrect?

• 7

• 14

• 22

• 28

True or false: All prime numbers are odd?

• True

• False

What is the least common multiple of 6 and 8?

• 12

• 16

• 24

• 48

What is -3 - (-7) - (+5)?

Simplify.

• y⁶⁰

• ¹/_y¹⁶

• y^-16

• y⁴

What is 4 - (+9) - (-8)?

What is the value of (-5)^-3?