Show:
Adding 9
Adding 11
Adding 100
Adding 1,000
Adding 1
100

9+2

11

100

11+11

22

100

200+200

400

100

1,000+1,000

2,000

100

1+1

2

200

9+3

12

200

12+12

24

200

300+700

1,000

200


4,000 + 4,000


8,000

200

3+1

4

300

9+4

13

300

11+12

23

300

100+100

200

300

10,000+10,000

20,000

300

1+45

46

400

9+9

18

400

10+3

13

400

900+100

1,000

400

8,000+1,000

9,000

400

1+20

21

500

10+10

20

500

5+10

15

500

600+200

800

500

20,000 + 1,000

30,000

500

50+1

51