Multiplication
What is 9 x 7?
63
What is 48 / 8?
6
List out the factors and locate the GCF of 2 and 12.
2 - 1, 2
12 - 1, 2, 3, 4, 6, 12
GCF: 2
What is 1/7 + 2/7?
3/7
What is 2/3 x 7/9?
Final answer cannot be reduced.
14/27
What is 12 x 7?
84
What is 66 / 2?
33
What is the LCM of 5 and 8?
5 - 5, 10, 15, 20, 25, 30, 35, 40
8 - 8, 16, 24, 32, 40
LCM: 40
What is 1/6 + 3/12?
Hint: Make the denominators the same by finding the LCD.
5/12
What is 3/10 x 4/5?
(Cross Cancel here!)
New problem becomes: 3/5 x 2/5 = 6/25
What is 64 x 9
576
What is 112 / 7?
16
List out the factors and locate the GCF of 16 and 40.
16 - 1, 2, 4, 8, 16
40 - 1, 2, 4, 5, 8, 10, 20, 40
GCF: 8
(Please reduce your answer at the end by finding the GCF)
8/12 = 2/3
What is 9/10 x 2/9?
(Cross cancel BOTH sides)
New problem: 1/5 x 1/1 = 1/5
What is 36 x 15?
540
What is 218 / 7?
31 remainder 1
What is the LCM of 3 and 13?
* Hint: Start with the bigger number!
3 - 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, 39
13 - 13, 26, 39
What is 1/4 + 8/16?
Also: Please reduce your final answer.
12/16 = 3/4
What is 4/6 x 2/8?
(Cross Cancel both sides!)
New problem: 1/3 x 1/2 = 1/6
What is 89 x 46?
4,094
What is 358 / 9?
39 remainder 7
List out the factors and find the GCF of 14 and 56?
14 - 1, 2, 7, 14
56 - 1, 2, 4, 7, 8, 14, 28, 56
GCF - 14
What is 9/27 - 1/9?
Hint: You cannot reduce your final answer!
6/27
What is 18/21 x 7/36?
(Cross Cancel both!)
New problem: 1/3 x 1/2 = 1/6