CCSS.Math.Content.6.NS.B.4

Jenny goes to dance class every 6 days, karate class every 12 days, and to the library every 18 days. On December 1st she went to both classes and the library. On what date will she do both classes and go to the library?

• 24 days
• 36 days
• 42 days
• 52 days

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CCSS.Math.Content.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

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CCSS.Math.Content.6.NS.B.4

Find the GCF of 64 and 144.
Hint-Remember to use your factor trees to help you.

• 8
• 6
• 16
• 2

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CCSS.Math.Content.6.NS.B.4

What is the least common multiple (LCM) of 4 and 10?

• 4
• 40
• 15
• 20

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CCSS.Math.Content.6.NS.B.4

Find the Least Common Multiple (LCM) of 12 & 30

• 30
• 36
• 60
• 90

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CCSS.Math.Content.6.NS.B.4

What is the GCF of 12 and 16? 

• 4
• 8
• 12
• 2

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CCSS.Math.Content.6.NS.B.4

GCF 24 and 36

• 8
• 6
• 12
• 4

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CCSS.Math.Content.6.NS.B.4

What is the GCF of 18 and 24?

• 3
• 6
• 8
• 9

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CCSS.Math.Content.6.NS.B.4

What is the GCF of 8 and 10?

• 1
• 3
• 4
• 2

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CCSS.Math.Content.6.NS.B.4

Find the LCM of 8 and 24 ...

• 24

• 48

• 32

• 64

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CCSS.Math.Content.6.NS.B.4