Show:
addition
subtraction
mutliplication
division
100

 2+28

30

100

19-18

1

100

22 x 22

16

100

2/2

1

200

30+45

75

200

12-19

-7
200

1000x3

3000

200

10/5

2

300

60+100

160

300

100-290

190


300

62 x 3

108

300

16/2

8

400

900+300

1200

400

-900-200

-110

400

1111x1111

1234321

400

100/5

20

500

1000+350

1350

500

1000-3000

-2000

500

6x6x5x3x2x1

1o80

500

500/5

1ooo