addition
subtraction
multiplication
100

5+4

9

100

5-2

3

100

1x1

1

200

5+5

10

200

6-4

2

200

2x3

6

300

8+4

12

300

5-1

4

300

10x2

20

400

4+2

6

400

10-7

3

400

2x2

4

500

8+5

13

500

13-2

11

500

4x2

8