one step (addition and subtraction)
Division
Multiplication
MISC
Challenge (haven't been taught yet!)
100

Solve for a. 

a+7=20

a=13

100

 w/6 = 5 

w = 30

100

 3r = 15 


r = 5

100

t/25 = 8

t = 200

100

30/a = 1

a = 30

200

Solve for x. 

x-6=20

x=26

200

p/3 = 7

p=21

200

3p = 21

p = 7

200

4y = 1000

y = 250

200

50/a = 1

a = 50

300

Solve for p.

p - 8 = 22

p = 30

300

w/5 = 5

w = 25

300

4s = 16

s = 4

300

y/30 = 6

y = 180

300

60/a = 6

a = 10
400

Solve for k.

k + 8 = 12

k = 4

400

g/9 = 3

g = 27

400

5t = 30

t = 6

400

7s = 3080

 s = 440

400

-r = -10

r = 10

500

Solve for c.

c - 10 = 4

C=14

500

s/452 = 3

s = 1356

500

104c = 208

c = 2

500

5029h = 10058

h = 2

500

2x + 3 = 11

x = 4

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