UNIT 1 Review

What is the GCF of 14 and 30

• 7

• 4

• 2

• 1

GCF of 32 and 40

• 2
• 4
• 6
• 8

Find the GCF of 64 and 144

• 8
• 6
• 16
• 2

Peter has 18 oranges, 27 pears and 12 bananas. He wants to make fruit baskets with the same number of each fruit in each basket. What is the greatest number of fruit baskets he can make?

• 1
• 2
• 3
• 4

Find the Least Common Multiple (LCM) of 4 & 14.

• 14
• 20
• 28
• 42

Find the Least Common Multiple (LCM) of 12 & 30

• 30
• 36
• 60
• 90

Find the Least Common Multiple (LCM) of 2, 3 & 6.

• 2
• 6
• 12
• 24

What is the LCM?

• The LCM is the least common factor that both numbers share the least. 
• The LCM is a multiple that both numbers share the most.  
• The LCM is a multiple that both numbers share the least. 
• The LCM is a factor that both numbers share the least. 

A prime number...

• has one factor.
• has more than 2 factors.
• has 100 factors.
• has exactly 2 factors: 1 and the itself.

Tags

CCSS.4.OA.B.4

Is 12, a prime or composite number? 

• Prime
• Composite

Tags

CCSS.4.OA.B.4