| Addition | 16 | 17 | 18 | 19 | 20 |
| 9 | 16+9 = 25 | 17+9 = 26 | 18+9 = 27 | 19+9 = 28 | 20+9 = 29 |
| 10 | 16+10 = 26 | 17+10 = 27 | 18+10 = 28 | 19+10 = 29 | 20+10 = 30 |
| 11 | 16+11 = 27 | 17+11 = 28 | 18+11 = 29 | 19+11 = 30 | 20+11 = 31 |
| 12 | 16+12 = 28 | 17+12 = 29 | 18+12 = 30 | 19+12 = 31 | 20+12 = 32 |
| 13 | 16+13 = 29 | 17+13 = 30 | 18+13 = 31 | 19+13 = 32 | 20+13 = 33 |
| Addition | 15.1 | 15.2 | 15.3 | 15.4 | 15.5 | 15.6 |
| 8.1 | 15.1+8.1 = 23.2 | 15.2+8.1 = 23.3 | 15.3+8.1 = 23.4 | 15.4+8.1 = 23.5 | 15.5+8.1 = 23.6 | 15.6+8.1 = 23.7 |
| 8.2 | 15.1+8.2 = 23.3 | 15.2+8.2 = 23.4 | 15.3+8.2 = 23.5 | 15.4+8.2 = 23.6 | 15.5+8.2 = 23.7 | 15.6+8.2 = 23.8 |
| 8.3 | 15.1+8.3 = 23.4 | 15.2+8.3 = 23.5 | 15.3+8.3 = 23.6 | 15.4+8.3 = 23.7 | 15.5+8.3 = 23.8 | 15.6+8.3 = 23.9 |
| 8.4 | 15.1+8.4 = 23.5 | 15.2+8.4 = 23.6 | 15.3+8.4 = 23.7 | 15.4+8.4 = 23.8 | 15.5+8.4 = 23.9 | 15.6+8.4 = 24 |
| 8.5 | 15.1+8.5 = 23.6 | 15.2+8.5 = 23.7 | 15.3+8.5 = 23.8 | 15.4+8.5 = 23.9 | 15.5+8.5 = 24 | 15.6+8.5 = 24.1 |
| 8.6 | 15.1+8.6 = 23.7 | 15.2+8.6 = 23.8 | 15.3+8.6 = 23.9 | 15.4+8.6 = 24 | 15.5+8.6 = 24.1 | 15.6+8.6 = 24.2 |