Factors
List all the factors of 12
1, 2, 3, 4, 6, 12
What is the LCM of 9 and 12
36
4 ➗ 1/2
8
Divide using the standard algorithm:
190 ➗ 8
23 3/4 or 23.75
Toby ties ribbons on gifts. He has a red ribbon that is 44 inches long. He has a blue ribbon that
is 33 inches long. He wants to cut both ribbons into pieces that are all equal in length and as long
as possible. How long should Toby cut each piece of ribbon?
11 inch pieces
List all the factors of 48
1, 2, 3, 4, 6, 8, 12, 16, 24, 48
What is the LCM of 4 and 6
12
3 ➗ 3/4
12/3 or 4
Divide using the standard algorithm:
3241 ➗ 5
648 1/5 or 648.2
A restaurant sells tacos for $0.99 each and drinks for $1.19 each. Kelly orders 2 tacos and
1 drink. She pays with a $5.00 bill. How much change should Kelly get back?
$1.83
What is the GCF of 12 and 48
12
What is the LCM of 5 and 7
35
2/3 ➗ 6
2/18 or 1/9
Divide using the standard algorithm:
919.5 ➗ 15
61 4/15 or 61.3
A trainer at a gym earns $2,456.75 every month. She earns an extra $4.75 every time she sells
a gym membership. Last month, the trainer sold 32 gym memberships. What is the total amount
of money the trainer earned last month?
$2,608.75
What is the GCF of 36 and 40
4
What is the LCM of 3 and 25
75
5/7 ➗ 10/13
65/70 or 13/35
Divide using the standard algorithm:
20.16 ➗ 1.2
16.8
Miss Song has 300 notecards to share among her 32 students. She wants to give the same
number of notecards to each student. What is the greatest number of notecards she can give
to each student?
9 notecards
What is the GCF of 28 and 55
1
What is the LCM of 15 and 6
30
9/16 ➗ 3/4
36/48 or 3/4
Divide using the standard algorithm:
23.0625 ➗ 0.45
51.25
A running club sets up water stations every 0.8 miles in a 6.2-mile race. How many water stations
does the club set up ?
7 water stations