| Addition | 3 | 4 | 5 | 6 | 7 |
| 16 | 3+16 = 19 | 4+16 = 20 | 5+16 = 21 | 6+16 = 22 | 7+16 = 23 |
| 17 | 3+17 = 20 | 4+17 = 21 | 5+17 = 22 | 6+17 = 23 | 7+17 = 24 |
| 18 | 3+18 = 21 | 4+18 = 22 | 5+18 = 23 | 6+18 = 24 | 7+18 = 25 |
| 19 | 3+19 = 22 | 4+19 = 23 | 5+19 = 24 | 6+19 = 25 | 7+19 = 26 |
| 20 | 3+20 = 23 | 4+20 = 24 | 5+20 = 25 | 6+20 = 26 | 7+20 = 27 |
| Addition | 2.1 | 2.2 | 2.3 | 2.4 | 2.5 |
| 15.1 | 2.1+15.1 = 17.2 | 2.2+15.1 = 17.3 | 2.3+15.1 = 17.4 | 2.4+15.1 = 17.5 | 2.5+15.1 = 17.6 |
| 15.2 | 2.1+15.2 = 17.3 | 2.2+15.2 = 17.4 | 2.3+15.2 = 17.5 | 2.4+15.2 = 17.6 | 2.5+15.2 = 17.7 |
| 15.3 | 2.1+15.3 = 17.4 | 2.2+15.3 = 17.5 | 2.3+15.3 = 17.6 | 2.4+15.3 = 17.7 | 2.5+15.3 = 17.8 |
| 15.4 | 2.1+15.4 = 17.5 | 2.2+15.4 = 17.6 | 2.3+15.4 = 17.7 | 2.4+15.4 = 17.8 | 2.5+15.4 = 17.9 |
| 15.5 | 2.1+15.5 = 17.6 | 2.2+15.5 = 17.7 | 2.3+15.5 = 17.8 | 2.4+15.5 = 17.9 | 2.5+15.5 = 18 |
| 15.6 | 2.1+15.6 = 17.7 | 2.2+15.6 = 17.8 | 2.3+15.6 = 17.9 | 2.4+15.6 = 18 | 2.5+15.6 = 18.1 |