Equations

Adding

100

x + 2 = 10

x = 8

200

5 + x = 50

x = 45

300

x + 20 = 142

x = 122

400

5.3 + x = 63.4

x = 58.1

500

x + 4.78 = 12.7

x = 7.92

Subtracting

100

x - 8 = 25

x = 33

200

30 = x - 18

x = 48

300

x - 51 = 12

x = 63

400

80.6 - x = 68.3

x = 12.3

500

x - 37.12 = 46.62

x = 9.5

Multiplying

100

5x = 50

x = 10

200

7x = 28

x = 4

300

15x = 75

x = 5

400

21.9x = 153.3

x = 7

500

15.95 = 3.19x

x = 5

Dividing

100

x/3 = 12

x = 36

200

x/35 = 42

x = 210

300

81 = x/9

x = 729

400

x/5.4 = 9.01

x = 48.654

500

x/2.6 = 11.96

x = 4.6

Order of Op

100

5² - 9 + 3

19

200

8 + 6 - 2(2) - 3²

1

300

4²/[(3.2 x 2) + 1.6]

2

400

12 x 2² - (18.4 + 0.6)

29

500

5² - 0.2 x (8 + 12) x 1/2

23