Show:
Addition
Subtraction
Multiplication
100

1+2=?

3

100

5-2=?

3

100

1x1=?

1
200

3+2=?

5

200

8-6=?

2

200

2x3=?

6

300

6+3=?

9

300

10-5=?

5

300

4x4=?

16

400

10+9=?

19

400

13-7=?

6

400

6x3=?

18

500
13+8=?

21

500

17-8=?

9

500

10x9=

90