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Adding Integers
Subtracting Integers
Equivalent Fractions
Lowest Terms
Least Common Multiple
100

(+2) + (+3)

+5

100

(+2) - (+2)

0

100

2/9 = 4/?

18

100

Write 2/4 in lowest terms.

1/2

100

What is the least common multiple of 2 and 3?

6

200

(+6) + (+5)

+11

200

(+4) - (+2)

+2

200

1/3 = ?/9

3

200

Write 8/10 in lowest terms.

4/5

200

What is the least common multiple of 4 and 6?

12

300

(-2) + (+3)

+1

300

(-2) - (-1) 

-1

300

10/11 = 20/?

22

300

Write 8/12 in lowest terms.

2/3

300

What is the least common multiple of 5 and 7?

35

400

(-5) + (-8)

-13

400

(+3) - (-2) - (+2)

+3

400

2/7 = ?/28

8

400

Write 12/15 in lowest terms.

4/5

400

What is the least common multiple of 2, 3,and 4?

12

500

(-2) + (+3) + (-6)

-5
500

(-2) - (+8) - (-4)

-6

500

9/10 = 81/?

90

500

Write 24/32 in lowest terms.

3/4

500

What is the least common multiple of 4, 5, and 10?

20