Chapter One Review

What is the LCM of 12 and 10

• 1
• 2
• 60
• 120

What is the GCF of 12 and 10?

• 1
• 2
• 60
• 120

Which of the following is not a prime number?

• 1
• 2
• 11
• 23

Mr. and Mrs. Right are teachers at the same school. Their 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

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

Find the GCF of 64 and 144

• 8
• 6
• 16
• 2

What is the least common multiple (LCM) of 15 and 2?

• 30
• 2
• 45
• 152

Two neon signs are turned on at the same time. Both signs blink as they are turned on. One sign blinks every 9 seconds. The other sign blinks every 15 seconds. In how many seconds will they blink together again?

• 48 seconds
• 45 seconds
• 16 seconds
• 8 seconds

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

At a book warehouse, each box can hold 36 books. Today 4,608 books were packed in boxes. How many boxes were used?

• 36 boxes
• 100 boxes with 8 books left over
• 120 boxes with 8 books left over
• 128 boxes

Tags

CCSS.5.NBT.B.6

CCSS.6.NS.B.2