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Addition
Subtraction
Multiplication
Division
Decimals and Fractions
100

x + 4 = 25

21

100

x - 2 = 6

8

100

9x = 27

3

100

y/6 = 2

12

100

m + 3.7 = 6.5

2.8

200

a + 13 = 16

3

200

d - 2/3 = 5/6

Simplify!

9/6 -> 3/2 -> 1 1/2

200

7x = 63

9

200

x/4 = 14

56

200

x - 3/4 = 2 2/3

3 5/12

300

n + (8) = 14

6

300

k -5 = 144

149

300

5e = 400

80

300

x/6 = 6

36

300

5.6 = 0.8x

7

400

x - 1/2 = 3/4

1 1/4

400

x - 327 = 665

992

400

1/3x = 1/5

3/5

400

m/3 = 9

27

400

c/0.29 = 5.5

1.595

500

3/4 = c + 1/2

1/4

500

a - 1/4 = 7/8

Simplify!

 9/8 -> 1 1/8

500

1/6x = 4/5

Simplify!

24/5 -> 4 4/5

500

80 = x/(15/3)

400

500

x + 1 3/4 = 2 2/3

11/12