Show:
Addition
Subtraction
Multiplication
Division
Decimals
100
x + 4 = 25
What is 21
100
x - 2 = 6
What is 8
100

9x = 27

What is 3

100

y/6 = 2

What is 12

100
m + 3.7 = 2.4
What is -1.3
200

a + 13 = 22

What is 9

200

d - 7 = 6

What is 13

200

7x = 63

What is 9

200

x/4 =14

What is 56

200

x + 6.9 = 10.5

What is 3.6

300

n +  12 = 34

What is 22

300

k - 83 =121

What is 204

300

5e = 400

What is 80

300

x/6 = 6

What is 36

300

5.6 = 0.8x

What is 7

400

x + 36 = 100

What is 64

400

x - 1 = 6

What is 7

400

11x = 275

What is 25

400

28 = a/13

What is 364

400

c/0.29 = 5.5

What is 1.595

500

27 = c + 27

What is 0

500

a - 163 = 392

What is 555

500

21y = 756

What is 36

500

80 = x/15

What is 1200

500

0.12 = y/0.12

What is 0.0144