Variables

Addition

100

X + 2 = 5

X = 3

200

V + 19 = 21

V  = 2

300

X + 20 = 104

X = 84

400

P + 67 = 167

P = 100

500

T + 8110 = 8674

T = 564

Subtraction

100

X - 2 = 8

X = 10

200

S - 7 = 14

S = 7

300

Q - 13 = 54

Q = 67

400

P - 5 = 73

P = 78

500

e - 125 = 534

e = 659

Multiplication

100

5c = 35

c = 7

200

3x = 24

x = 24

300

7x = 49

x = 7

400

12m = 96

m = 8

500

15m = 90

m = 6

Divide

100

R / 4 = 2

R = 8

200

J / 3 = 4

J = 12

300

X / 5 = 4

X = 20

400

W / 6 = 30

W = 5

500

X / 9 = 15

X = 135

Surprise!

100

a + 63 = 100

a = 37

200

4m = 16

4

300

H/ 9 = 12

H= 108

400

X / 7 = 8

X = 56

500

B / 8 = 9

B = 72