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

Solve for a. 

a+7=70

a=63

100

 w/4 = 5 

w = 20

100

 2r = 10 

 2(r) = 10 

r = 5

100

t/25 = 4

t = 100

100

30/a = 1

a = 30

200

Solve for x. 

x-16=42

x=58

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 - 5 = 22

p = 27

300

w/10 = 2

w = 20

300

4s = 36

s = 9

300

y/30 = 6

y = 180

300

60/a = 6

a = 10
400

Solve for k.

k + 1 = 6

k = 5

400

g/9 = 12

g = 108

400

5t = 70

t = 14

400

77s = 3080

 s = 40

400

-r = -10

r = 10

500

Solve for c.

c - 10 = 20

C=30

500

s/452 = 3

s = 1356

500

104c = 1248

c = 12

500

5029h = 10058

h = 2

500

2x + 5 = 11

x = 3

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