| Subtraction | 4 | 5 | 6 | 7 | 8 |
| 12 | 4-12 = -8 | 5-12 = -7 | 6-12 = -6 | 7-12 = -5 | 8-12 = -4 |
| 13 | 4-13 = -9 | 5-13 = -8 | 6-13 = -7 | 7-13 = -6 | 8-13 = -5 |
| 14 | 4-14 = -10 | 5-14 = -9 | 6-14 = -8 | 7-14 = -7 | 8-14 = -6 |
| 15 | 4-15 = -11 | 5-15 = -10 | 6-15 = -9 | 7-15 = -8 | 8-15 = -7 |
| 16 | 4-16 = -12 | 5-16 = -11 | 6-16 = -10 | 7-16 = -9 | 8-16 = -8 |
| Subtraction | 3.1 | 3.2 | 3.3 | 3.4 | 3.5 |
| 11.1 | 3.1-11.1 = -8 | 3.2-11.1 = -7.9 | 3.3-11.1 = -7.8 | 3.4-11.1 = -7.7 | 3.5-11.1 = -7.6 |
| 11.2 | 3.1-11.2 = -8.1 | 3.2-11.2 = -8 | 3.3-11.2 = -7.9 | 3.4-11.2 = -7.8 | 3.5-11.2 = -7.7 |
| 11.3 | 3.1-11.3 = -8.2 | 3.2-11.3 = -8.1 | 3.3-11.3 = -8 | 3.4-11.3 = -7.9 | 3.5-11.3 = -7.8 |
| 11.4 | 3.1-11.4 = -8.3 | 3.2-11.4 = -8.2 | 3.3-11.4 = -8.1 | 3.4-11.4 = -8 | 3.5-11.4 = -7.9 |
| 11.5 | 3.1-11.5 = -8.4 | 3.2-11.5 = -8.3 | 3.3-11.5 = -8.2 | 3.4-11.5 = -8.1 | 3.5-11.5 = -8 |
| 11.6 | 3.1-11.6 = -8.5 | 3.2-11.6 = -8.4 | 3.3-11.6 = -8.3 | 3.4-11.6 = -8.2 | 3.5-11.6 = -8.1 |