Module 2, Lesson 3 Review

A radio station is giving away concert tickets to every 60th caller and a concert T-shirt to every 45th caller.

What will be the number of the first caller to get both items?

• 2,700

• 5

• 180

• 15

A cuckoo clock has birds that pop out of their nests every 6 minutes and dancers that pop out every 15 minutes. The birds and dancers have just popped out at the same time.

When will this happen again in the next 60 minutes?

• After 30 minutes, then again after 60 minutes

• After 30 minutes, then again after 45 minutes

• After 15 minutes, then again after 60 minutes

• After 60 minutes, then again after 120 minutes

String-cheese sticks are sold in packs of 10, and celery sticks in packs of 15. Mr. Deluca wants to give each of 30 students one string-cheese stick and one celery stick. What is the least number of packs he should buy so there are none left over?

• 3 packs of string cheese, 3 packs of celery sticks

• 6 packs of string cheese, 4 packs of celery sticks

• 3 packs of string cheese, 2 packs of celery sticks

• 2 packs of string cheese, 3 packs of celery sticks

Find the GCF of 8 and 12

Find the GCF of 10, 15 and 30

Find the GCF of 18, 36, and 60