Show:
Prime Factors
GCF & LCM
Mixed Numbers & Improper Fractions
Ordering Fractions & Decimals
LCD
100

What are the first 10 prime numbers?

2, 3, 5, 7, 11, 13, 17, 19, 23, 29

100

What is the GCF of 12 and 18?

6

100

Convert 21/4 into a mixed number.

5 1/4

100
Is 11/20 or 13/23 larger?  How did you figure it out?  

13/23. Compare it to 1/2.

100

What is the LCD of 8/10 and 11/20?

20

200

What is the prime factorization of 51?

3 x 17

200

What is the GCF of 32 and 200? 

2^3

200

Convert 3 5/8 into an improper fraction.

29/8

200
Order 8/5, 1 2/3, 16/10, 2.2

8/5 = 16/10 , 1 2/3, 2.2 

200

Compare the two fractions, using an LCD.

5/6 and 14/20

50/60  >  42/60

300

Is 1,899,342,570 divisible by 3? 

Yes.  Add the digits.  1+8+9+9+3+4+2+5+7=48, which is 3x16

300

What is the GCF of 

#1: 2^2 x 3^3 x 5^5 x 7^7

#2: 2 x 3 x 5^2 x 11

2 x 3 x 5^2

300

Convert 58/6 into a mixed number.

9 4/6

300

Order from least to greatest: 5 11/30, 16/3, 19/4, 5 2/3

19/4, 16/3, 5 11/30, 5 2/3

300

Compare the 2 fractions using an LCD. 

17/25 and 88/100

68/100 < 88/100

400
What are the prime factors of 100? 

2^2 x 5^2

400

What is the LCM of 20 & 45? 

180

400

Convert 10 3/9 into an improper fraction. 

93/9

400

Which is larger?  5 2/8 or  49/9? 

49/9

400

Compare the two fractions using an LCD. 

7/18 and 25/30

35/90 > 75/90

500

What is the prime factorization of 99? 

3^2 x 11 

500

What is the LCM of 

#1: 2^2 x 3^3 x 5^5 x 7^7 

#2: 2 x 3 x 5^2 x 11

2^2 x 3^3 x 5^5 x 7^7 x 11

500

Convert 12345/2 into a mixed number

6172 1/2

500

Which one is larger:  11/17 or 8/20? 

8/20

500

What is the LCD of 2/11 and 3/7? 

11 x 7 = 77