October Math Review

Find the least common multiple (LCM) of 10 and 20.

• 5

• 10

• 20

• 40

Find the least common multiple (LCM) of 4 and 6.

• 4

• 6

• 12

• 24

What is the LCM of 7 and 8? 

• 7
• 8
• 42
• 56

What is the greatest common factor of 35 and 47?

• 5

• 7

• 1

• 8

What is the greatest common factor of 16 and 24?

What is the GCF of 21 and 49?

Cups are sold 5 to a package and plates are sold 10 to a package. If you want to have the same number of each item for a party, what is the least number of packages of each you need to buy?

• 30
• 20
• 50
• 10

If Maria runs every third day and swims every fifth day, what is the first day that she will both run and swim again? 

• 5
• 15
• 45
• 30

At Chick-Fil-A, the kitchen staff baked 36 chicken sandwiches and 108 spicy chicken strips. The staff had to prepare lunches for GDS. If each lunch will have the same number of sandwiches and strips, what is the greatest number of lunches they can make?

• 36

• 9

• 12

• 16

Maya had 16 red flowers and 24 yellow flowers.  She wants to make bouquets with the same number of each color flower in each bouquet.  What is the greatest number of bouquets that she can make?

• 4
• 2
• 48
• 8