Show:
addition
subtaction
mutliply
100

2+4

6

100

5-4

1

100

1x2

2

200

11+20

32

200

15-6

9

200

5x2

10

300

12+12

24

300

12-6

6

300

10x150

1500

400

25+23

48

400

25-5

20

400

2x2

4

500

15+15

30

500

24-20

4

500

6x6

36