| Addition | 15 | 16 | 17 | 18 | 19 |
| 5 | 15+5 = 20 | 16+5 = 21 | 17+5 = 22 | 18+5 = 23 | 19+5 = 24 |
| 6 | 15+6 = 21 | 16+6 = 22 | 17+6 = 23 | 18+6 = 24 | 19+6 = 25 |
| 7 | 15+7 = 22 | 16+7 = 23 | 17+7 = 24 | 18+7 = 25 | 19+7 = 26 |
| 8 | 15+8 = 23 | 16+8 = 24 | 17+8 = 25 | 18+8 = 26 | 19+8 = 27 |
| 9 | 15+9 = 24 | 16+9 = 25 | 17+9 = 26 | 18+9 = 27 | 19+9 = 28 |
| Addition | 14.1 | 14.2 | 14.3 | 14.4 | 14.5 | 14.6 |
| 4.1 | 14.1+4.1 = 18.2 | 14.2+4.1 = 18.3 | 14.3+4.1 = 18.4 | 14.4+4.1 = 18.5 | 14.5+4.1 = 18.6 | 14.6+4.1 = 18.7 |
| 4.2 | 14.1+4.2 = 18.3 | 14.2+4.2 = 18.4 | 14.3+4.2 = 18.5 | 14.4+4.2 = 18.6 | 14.5+4.2 = 18.7 | 14.6+4.2 = 18.8 |
| 4.3 | 14.1+4.3 = 18.4 | 14.2+4.3 = 18.5 | 14.3+4.3 = 18.6 | 14.4+4.3 = 18.7 | 14.5+4.3 = 18.8 | 14.6+4.3 = 18.9 |
| 4.4 | 14.1+4.4 = 18.5 | 14.2+4.4 = 18.6 | 14.3+4.4 = 18.7 | 14.4+4.4 = 18.8 | 14.5+4.4 = 18.9 | 14.6+4.4 = 19 |
| 4.5 | 14.1+4.5 = 18.6 | 14.2+4.5 = 18.7 | 14.3+4.5 = 18.8 | 14.4+4.5 = 18.9 | 14.5+4.5 = 19 | 14.6+4.5 = 19.1 |
| 4.6 | 14.1+4.6 = 18.7 | 14.2+4.6 = 18.8 | 14.3+4.6 = 18.9 | 14.4+4.6 = 19 | 14.5+4.6 = 19.1 | 14.6+4.6 = 19.2 |