1 digit number
1 + 3 =
4
11 + 11 =
22
222 + 222 =
444
1000 + 1000 =
2000
10000 + 10000 =
20000
5 + 2 =
7
22 + 22 =
44
333 +333 =
666
2000 + 2000 =
4000
20000 + 20000 =
40000
3 + 6 =
9
11 + 55 =
66
111 + 111 =
222
3000 + 3000 =
6000
30000 + 30000 =
60000
4 + 4 =
8
58 + 20 =
78
444 + 444 =
888
4000 + 4000 =
8000
40000 + 40000 =
80000
2 + 3 =
5
28
555 + 222 =
777
5000 + 2000 =
7000
50000 + 20000 =
70000