Show:
x
x/x
-
+
100

2x103

2000

100

40/2

20

100

12-10

2

100

20+40

60

200

30X10-2

0.3

200

15/3

5

200

13-14

-1

200

222+45

267


300

10x10

100

300

20/4

5

300

30-40

-10

300

485+93

578

400

40x2

80

400

90/3

30

400

50-45

15

400

20+29

49

500

5x10

50

500

100/25

4

500

90-60

30

500

20+46

66