| Addition | 12 | 13 | 14 | 15 | 16 |
| 16 | 12+16 = 28 | 13+16 = 29 | 14+16 = 30 | 15+16 = 31 | 16+16 = 32 |
| 17 | 12+17 = 29 | 13+17 = 30 | 14+17 = 31 | 15+17 = 32 | 16+17 = 33 |
| 18 | 12+18 = 30 | 13+18 = 31 | 14+18 = 32 | 15+18 = 33 | 16+18 = 34 |
| 19 | 12+19 = 31 | 13+19 = 32 | 14+19 = 33 | 15+19 = 34 | 16+19 = 35 |
| 20 | 12+20 = 32 | 13+20 = 33 | 14+20 = 34 | 15+20 = 35 | 16+20 = 36 |
| Addition | 11.1 | 11.2 | 11.3 | 11.4 | 11.5 | 11.6 |
| 15.1 | 11.1+15.1 = 26.2 | 11.2+15.1 = 26.3 | 11.3+15.1 = 26.4 | 11.4+15.1 = 26.5 | 11.5+15.1 = 26.6 | 11.6+15.1 = 26.7 |
| 15.2 | 11.1+15.2 = 26.3 | 11.2+15.2 = 26.4 | 11.3+15.2 = 26.5 | 11.4+15.2 = 26.6 | 11.5+15.2 = 26.7 | 11.6+15.2 = 26.8 |
| 15.3 | 11.1+15.3 = 26.4 | 11.2+15.3 = 26.5 | 11.3+15.3 = 26.6 | 11.4+15.3 = 26.7 | 11.5+15.3 = 26.8 | 11.6+15.3 = 26.9 |
| 15.4 | 11.1+15.4 = 26.5 | 11.2+15.4 = 26.6 | 11.3+15.4 = 26.7 | 11.4+15.4 = 26.8 | 11.5+15.4 = 26.9 | 11.6+15.4 = 27 |
| 15.5 | 11.1+15.5 = 26.6 | 11.2+15.5 = 26.7 | 11.3+15.5 = 26.8 | 11.4+15.5 = 26.9 | 11.5+15.5 = 27 | 11.6+15.5 = 27.1 |
| 15.6 | 11.1+15.6 = 26.7 | 11.2+15.6 = 26.8 | 11.3+15.6 = 26.9 | 11.4+15.6 = 27 | 11.5+15.6 = 27.1 | 11.6+15.6 = 27.2 |