GCF/LCM Review

What is the GCF of 12 and 10?

• 1
• 2
• 60
• 120

What is the LCM of 12 and 10?

• 1

• 2

• 60

• 120

Jack has football practice every 3rd day. He also plays piano and has practice every 4th day. Today, Jack has both football and piano practice. In how many days, will he have both practices again?

• 1
• 12
• 24
• 3

Anika made 36 jars of plum jelly and 48 jars of grape jelly.  She is putting the jars into boxes of identical size.  Each box will only have one kind of jelly.  What is the greatest number of jars of jelly she can have in a box?

• 6
• 12
• 18
• 24

Mr. and Mrs. Right are teachers at the same school. There classrooms have the same number of desks in them. If Mr. Right has his desks in rows of 6 and Mrs. Right has her desks in rows of 8, what is the smallest number of desks that they could have in their classrooms?

• 2
• 16
• 24
• 48