Unit 1 Study Guide

Find the Greatest Common Factor (GCF) of 14 & 22.

• 1

• 2

• 7

• 14

Find the Least Common Multiple (LCM) of 4 & 14.

• 14
• 20
• 28
• 42

Find the Least Common Multiple (LCM) of 12 & 18

• 36
• 48
• 60
• 72

Find the Greatest Common Factor (GCF) OF 32 and 64.

• 1
• 2
• 4
• 32

Eason is making activity baskets to donate to charity.  She has 12 coloring books and 36 crayons.  What is the greatest number of baskets she can make if each type of toy is equally distributed among the baskets?

• 2
• 12
• 36
• 6

At the movie theater, they give out a free drink to every 75th customer and a free bag of popcorn to every 30th customer. Who is the first customer that is going to win both free items?

• 16th customer
• 150th customer
• 300th customer
• 180th customer

Tanner goes to  karate class every 12 days and too the library every 18 days. On December 1st he went to both class and the library. On what date will he do both class and go to the library?

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

Bella is making identical balloon arrangements for a party. She has 32 maroon balloons, 24 white
balloons, and 16 orange balloons. She wants each arrangement to have the same number of each
color. What is the greatest number of arrangements that she can make if every balloon is used?

• 32
• 192
• 4
• 8

A radio station is giving away a $100 bill to every 30th caller and movie tickets to every 40th caller.  Which caller will be the first to win both prizes?

• 5
• 2
• 10
• 120

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
• 3  seconds