GCF and LCM practice

What is the GCF of 12 and 18?

• 24
• 6
• 36
• 3

Tags

CCSS.6.NS.B.4

What is the LCM of 12 and 18?

• 3
• 6
• 36
• 72

Tags

CCSS.6.NS.B.4

What is the GCF of 8, 16 & 20?

• 4
• 8
• 48
• 80

Tags

CCSS.6.NS.B.4

What is the LCM of 5, 8 & 10?

• 1
• 20
• 30
• 40

Tags

CCSS.6.NS.B.4

In New York City, taxi cabs make a loop around the block every 9 minutes and buses make the loop every 15 minutes.  If they leave a stop at the same time, when will they both be back at the stop again? 

• 3 minutes
• 45 minutes
• 65 minutes
• 30 minutes

Tags

CCSS.6.NS.B.4

Stacy is making flower baskets for her neighbors.  She has 18 roses, 12 daisies and 24 sunflowers.  She wants to put the same number of each flower in each basket.  What is the greatest number of baskets she can make? 

• 48 baskets
• 36 baskets
• 2 baskets
• 6 baskets

Tags

CCSS.6.NS.B.4

Jenny goes to dance class every 6 days and karate class every 9 days.  If she did both today, in how many days will she do both again? 

• 18 days
• 24 days
• 36 days
• 54 days

Tags

CCSS.6.NS.B.4

The pet shop is putting together goody bags to send to different shelters.  They have 36 chew toys, 24 dog bones and 18 chase toys for cats.  What is the maximum number of goody bags will they be able to make to send to shelters? 

• 4 bags
• 8 bags
• 6 bags
• 12 bags

Tags

CCSS.6.NS.B.4

Which of the following is a multiple of 8?

• 8
• 2
• 4
• 100

Tags

CCSS.4.OA.B.4

Which pair of numbers has a GCF of 3?

• 3 and 18
• 12 and 18
• 9 and 27
• 1 and 3

Tags

CCSS.6.NS.B.4