What is the LCM of 3 and 9? Think of making lists of 3 and lists of 9.
9
18
27
3
5. Multiple Choice
30 seconds
1 pt
What is the GCF of 23 and 11?
1
11
23
idk
6. Multiple Choice
30 seconds
1 pt
12 and 19 are relatively prime because the only factor they have in common is 1. Which of the following is relatively prime?
4 and 8
3 and 12
2 and 11
14 and 21
7. Multiple Choice
30 seconds
1 pt
What are the first four multiples of 10?
1, 2, 5, 10
10, 20, 30, 40
20, 30, 40, 50
5, 10, 15, 20
8. Multiple Choice
30 seconds
1 pt
If a song is played every 8 minutes on one station and every 10 minutes on another station, how many minutes will pass before they are played together? Hint: LCM of 8 and 10
80 minutes
40 minutes
45 minutes
60 minutes
9. Multiple Choice
30 seconds
1 pt
Janey has 28 suckers and 32 stickers to pass out to her friends. She wants to split them up evenly. How many friends can she give an equal number of suckers and stickers to? Hint: GCF of 28 and 32
2 friends
4 friends
7 friends
8 friends
10. Multiple Choice
30 seconds
1 pt
Mr. and Mrs. Janowski have 5 children. Each of their children have 5 children. How many grandchildren do they have?