Adding
Dividing
Rational
Multiplying
Order of Operations
100

1/4 + 2/8

1/2 or 2/4

100

-9/(1/8)

-72

100

1/3

0.33333333...

100

-1/10 x 5

-1/2

100

(10x4)-12/4x7

19

200

4/9 + 1/2

17/18

200

-7/(28/4)

-1

200

1.75 x 5/7

1.25

200

-2 x (4 x 3)

-24

200

42 x 3 / 4

31.5

300

1/4 + 3/4 + 1/2

1 1/2

300

(240 / 8) / 15

2

300

-5/16

-0.3125

300

24 x -3 x 2

-144

300

(12/4) + 3 x 7

24

400

20 + -5 + 10

25

400

(400 / 20) / 5

4

400

7/8 x -3

-2.625

400

32 x 4 x -3

-384

400

19 x (4/2) x 6 / 4

57

500

-45 1/2  + 10 2/5 + 350

315 9/10

500

(8/15) / (2/3)

0.8 or 4/5

500

13/33

0.3939393939...

500

25 x -9 x 2

-450

500

(10x9) x 4 /3 + 4 - 10 + 2 (9x4)

186

M
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