1's
1 plus 1
2
10 plus 10
20
100 + 100
200
1,000 + 1,000
2,000
10,000 + 10,000
20,000
1 plus 2
3
10 plus 11
21
100 + 200
1,000 + 2,000
3,000
10,000 + 20,000
30,000
1 plus 3
4
10 plus 12
22
100 + 300
400
1,000 + 3,000
4,000
10,000 + 30,000
40,000
1 plus 4
10 plus 13
23
100 + 400
500
1,000 + 4,000
5,000
10,000 + 40,000
50,000
1 plus 5
6
10 + 14
24
100 + 500
600
1,000 + 5,000
6,000
10,000 + 50,000
60,000