GCF and LCM

Which of these is a factor of 15?

• 2

• 3

• 10

• 30

Tags

CCSS.4.OA.B.4

Which is not a factor of 36?

• 3

• 6

• 36

• 72

Tags

CCSS.4.OA.B.4

Which is the GCF of 8 and 12?

• 2

• 4

• 24

• 96

Tags

CCSS.6.NS.B.4

Rose 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

• 5

• 90

• 180

Tags

CCSS.6.NS.B.4

Which of the following is a multiple of 8?

• 4

• 24

• 20

• 100

Tags

CCSS.6.NS.B.4

Every fourth visitor to a museum gets a free bumper sticker. Every tenth visitor to that museum gets a free key chain. Which visitor each day will be the first one to get both the bumper sticker and the key chain?

• 10th

• 20th

• 40th

• 100th

Tags

CCSS.6.NS.B.4

What is the GCF of 21 and 30?

Tags

CCSS.6.NS.B.4

What is the LCM of 6 and 7?

Tags

CCSS.6.NS.B.4

Wilhelm solved a problem by making these lists:

10: 20, 30, 40, 50, 60

15: 15, 30, 45, 60

What problem was he solving? (LCM or GCF)

Tags

CCSS.6.NS.B.4

There are 12 girls and 15 boys in a class. The teacher wants to make reading groups with the same number of girls and the same number of boys in each group. What is the greatest number of reading groups that can be made?

Tags

CCSS.6.NS.B.4