LCM and GCF

Which is the GCF of 4 and 12?

• 2

• 4

• 12

Every third visitor to a haunted house gets a free bumper sticker. Every fifth visitor to that haunted house gets a free key chain. Which visitor each day will be the first one to get both the bumper sticker and the key chain?

• 3rd

• 5th

• 15th

Ghoul volunteers at the hospital every 4th day. She volunteers at the food pantry every 6th day. She volunteered at the hospital and the food pantry both on March 31. On what date will she next volunteer at both?

• April 12

• April 16

• May 1

Which pair of numbers has a GCF of 6?

• 3 and 18

• 6 and 12

• 12 and 24

Which pair of numbers has a GCF of 10 AND a LCM of 60?

• 2 and 5

• 20 and 30

• 5 and 10

• 15 and 20

Tags

TEKS.MATH.6.7A

Which pair of numbers has a LCM of 20?

• 4 and 5

• 2 and 10

• 5 and 10

Which is the GCF of 8 and 12?

• 2

• 4

• 24

• 96

Warewolf picked 18 tulips and 20 daffodils. She divided the flowers into groups so that the same number of tulips and daffodils were in each bouquet. What is the greatest number of bouquets she could have made?

• 2

• 3

• 90

• 180

Which pair of numbers has a GCF of 3?

• 3 and 18

• 12 and 18

• 8 and 24

• 1 and 3

Which pair of numbers has a LCM of 12?

• 1 and 6

• 2 and 3

• 2 and 6

• 3 and 4