Addition
Subtraction
Multiplication
Division
Decimals
100

x + 4 = 25

x=21

100

x - 2 = 6

x=8

100

9x = -27

x= -3

100

y/-6 = 2

y= -12

100

m + 3.7 = 2.4

What is -1.3

200

a + 13 = 10

a=-3

200

d - 7 = -9

d=-2

200

-7x = -63

x= 9

200

x/4 = -14

What is -56

200

x +66.09 = 102.8

x=36.71

300

n + (-8) = -14

n=-6

300

k -83 =121

k=204

300

-5e = -400

e= 80

300

x/6 = -6

What is -36

300

-5.6 = 0.8x

What is -7

400

x + 36 = -100

x= -136

400

x - 327 = -665

x=-338

400

-11x = 275

x= -25

400

-28 = a/-13

What is 364

400
c/-0.29 = 5.5
What is -1.595
500

-27 = c + 27

c= -56

500

a - 163 = -392

a=-229

500

-21y = -756

y= 36

500

-80 = x/15

What is -1200

500
0.12 = y/0.12
What is 0.0144
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