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What is the GCF of 99 and 54?

• 9
• 3
• 6
• 8

What is the GCF of 20 and 35?

• 4
• 5
• 7
• 20

Find the GCF of 60 and 72

• 11
• 6
• 12
• 10

GCF of 27 and 63

• 3
• 5
• 9
• 10

WHAT IS THE LCM OF:
30   AND   42

• 200
• 210
• 220
• 230

A store gave away a $5 gift card to every sixth customer and a $10 gift card to every tenth customer. Which customer would be the first to receive both the $5 and $10 gift cards? 

• 16th
• 24th
• 30th
• 60th

Find the Greatest Common Factor (GCF) OF 12,  18 & 30

• 1
• 3
• 6
• 12

Find the Greatest Common Factor (GCF) of 12 & 27

• 1
• 3
• 9
• 12

 Find the GCF of each set of numbers. 
28, 42, 56

• 14
• 4
• 7
• 8

What is the LCM of 18 and 24?

• 6
• 72
• 24