Math 7 Exam II Review (Part 1)

Find the GCF for the pair of numbers:

18, 54

Find the GCF for the pair of numbers:

180, 600

Identify the pair of relatively prime numbers within the set:

4, 9, 18

Identify the pair of relatively prime numbers within the set:

25, 30, 36

Which do you need to solve this problem:

Your teacher us making gift bags for your class with 48 pencils, 24 erasers, and 12 highlighters. How many gift bags can be made if each group is identical? How many of each item will be in each bag?

• Greatest Common Factor

• Least Common Multiple

Which do you need to solve this problem:

Tommy’s Tile Company is laying tile in a room measuring 96 feet by 135 feet. In order to make the fewest number of cuts, Tommy wants to find the largest square tile to fill the space. What size tile should be chosen and how many tiles will be needed?

• Greatest Common Factor

• Least Common Multiple

Find the LCM for the pair of numbers:

24, 32

Find the LCM for the pair of numbers:

36, 42

Which do you need to solve this problem:

Bailey and Spencer are swimming laps. Bailey swims 7 laps in 6 minutes, and Spencer swims 5 laps in 4 minutes. If they start and stop at the same time and swim a whole number of laps, what is the least amount of time they swim? How many laps did each girl swim?

• Greatest Common Factor

• Least Common Multiple

Which do you need to solve this problem:

Patrons can opt to take a trolley or a bus to travel from one side of the amusement park to the other. The trolley leaves every 24 minutes, while the bus leaves every 18 minutes. If they both left at 9:00 am, what time would they both be leaving together again?

• Greatest Common Factor

• Least Common Multiple