Adding / Subtracting Fractions
Prime Factorization
Greatest Common Factor
Simplify Fraction
Random
100

3 / 8 + 2 / 8

5 / 8

100

12

2 x 2 x 3

100

4 and 6

2

100

4 / 6

2 / 3

100

Who is on a $100 bill?

Ben Franklin

200

4 / 10 - 2 / 10

2 / 10

200

20

2 x 2 x 5

200

10 and 15

5

200

10 / 15

2 / 3

200

What year did America get independence from Great Britain?

1776

300

12 / 20 + 4 / 20

16 / 20

300

32

2 x 2 x 2 x 2 x 2

300

12 and 30

6

300

12 / 30

2 / 5

300

What president made slavery illegal?

Abraham Lincoln

400

10 / 12 + 2 / 12

12 / 12

400

40

2 x 2 x 2 x 5

400

30 and 50

10

400

30 / 50

3 / 5

400

When was the first iPhone made?

2007

500

13 / 20 - 13 / 20

0 / 20

500

70

2 x 5 x 7

500

24 and 60

12

500

24 / 60

2 / 5

500

Where did the pilgrims land when they came to America?

Cape Cod, Massachusetts

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