Review for Test!

A counts by 4s and B counts by 5s. What is the smallest number they will both say?

• 20

• 40

• 10

• 12

What is 3⁵?

• 125
• 243
• 512
• 35

Which of the following numbers is a PRIME number: 27, 33, 40, 43, 45, 48, 49, 77, 81

• 40
• 43
• 33
• 27

4000/500 = ? (must be in simplest form!)

• 15

• 10
• 8
• 20

Find the GCF of 81 and 27.

• 9
• 27
• 18
• 36

(1/8)³ = ?

• 1/560

• 1/24

• 1/512

• 1/64

[45 - (-45) ] ÷ 45 =

• 0
• 2

• 3

• 1

What is the answer to 2⁴ x 3?

• 24
• 12
• 16
• 48

6.2 - 1.354 = ?

• 4.846
• 2.846
• 3.565

• 5.223

What would I need to divide these numbers by to get a simplified fraction?

(Hint: What's their GCF?)

18/45

• 6
• 12
• 9
• 3