LCM & GCF

What is the GCF of 64 and 144

• 8

• 16

• 6

• 2

Tags

CCSS.6.NS.B.4

Check all the factors of 21

• 1

• 21

• 3

• 7

• 8

Mark is buying black and blue pens. He wants to buy the same number of each. Black pens come in packs of 3, and blue pens come in packs of 4. What is the least number of each color Mark can buy?

• 12

• 24

• 0

• 9

Tags

CCSS.6.NS.B.4

Claire and Jordan are managers at different restaurants and regularly make deposits at the bank. Claire goes to the bank every 5 business days, while Jordan goes every 7 business days. They are both at the bank today. How many business days will it be until Claire and Jordan are at the bank on the same day again?

Tags

CCSS.6.NS.B.4

The GCF of 8 and 12 is 2.

• True

• False

Tags

CCSS.6.NS.B.4

Tom runs a car dealership that currently has 21 pickup trucks and 35 SUVs. He wants to divide the lot into areas that have either pickup trucks or SUVs, and he wants the same number of vehicles in each area. What is the largest number of vehicles Tom can put in one area?

• 3

• 15

• 8

• 7

Tags

CCSS.6.NS.B.4

What is the least common multiple (LCM) of 5 and 20?

• 4
• 5
• 20
• 100

Tags

CCSS.6.NS.B.4

GCF 24 and 36

• 8
• 6
• 12
• 4

Tags

CCSS.6.NS.B.4

Sara 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

Tags

CCSS.6.NS.B.4

Two clocks are turned on at the same time. One clock chimes every 15 minutes. The other clock chimes every 25 minutes. In how many minutes will they chime together?

• 55 minutes
• 25 minutes
• 60 minutes
• 75 minutes

Tags

CCSS.6.NS.B.4