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Decimals
GCF
LCM
Prime Factorization
Mish-Mash
100
What is 1,683/20. Write the remainder (if any) in fraction form.
84 3/20
100
What is the GCF of 20 and 50?
10
100
What is the LCM for the numbers 10 & 4?
20
100
What is the prime factorization for 44?
2 x 2 x 11
100
A secret agent tried to open a top secret file by entering the code he was given. The code was the prime factorization of 225. He entered the following four digit code but it did not work. Why? Code entered: 3 x 3 x 4 x 5.
Each digit must be a prime number and 4 is not a prime number.
200
A plane flew a total of 2,220 miles. Its average speed was 555 miles per hour. How many hours did the plane fly? **Don't forget to "label."**
4 hours
200
What is the GCF of 128 and 96?
32
200
What is the LCM for 6 & 9?
18
200
What is the prime factorization for the number 65?
5 X 13
200
8 bags of pumpkin muffins and 7 bags of banana muffins with 4 muffins in each bag. Sally is bagging 32 pumpkin muffins and 28 banana muffins for some friends. Each bag will hold only one type of muffin. Each bag will hold the same number of muffins. What is the greatest number of muffins she can put in each bag? How many bags of each type of muffin will there be?
8 bags of pumpkin muffins and 7 bags of banana muffins with 4 muffins in each bag.
300
What is 3.92 + 16 + .085 = ?
20.005
300
Use the GCF and the Distributive Property to express the sum as a product. 20 + 35
5 x (4+7)
300
What is LCM for the numbers 5,8 & 4?
40
300
The digits of the code number to a pirates buried treasure chest are the prime factors of 150. What is the code for the lock to open the treasure chest?
2355
300
What is (32.45-4.8)-2.06=?
25.59
400
What is 12.42 x 28.6 = ?
355.212
400
18 X (2+3)Use the GCF and the Distributive Property to express the sum as a product. 36 + 54
18 X (2+3)
400
What is the LCM for the numbers 4,27 and 36?
108
400
Write the number whose prime factorization is given: 2 x 2 x 2 x 7
56
400
What is 1.068/4?
.267
500
What is 544.6/1.75?
311.2
500
There are 24 sixth graders and 40 seventh graders. Mr. Chan wants to divide both grades into equal groups of equal size, with the greatest possible number of students in each group. How many students should be in each group?
8 students
500
Write the unknown number for the variable "n." n, 6 LCM is 42
7 or 42
500
Write the number whose prime factorization is given. 2 x 2 x 2 x 2 x 3 x 3
144
500
What is 142/ (42 - 6.5) x 3.9?
15.6