| 1) (8 – 5 | 3 | ) + 3 | 13 | = 2 | 14 | + 3 | 13 | = 6 | 10 | ; |
| 17 | 17 | 17 | 17 | 17 |
| 2) (7 | 8 | + 4 | 5 | ) – (3 | 2 | – 1 | 4 | ) = 12 | 2 | – 1 | 9 | = 10 | 4 | ; |
| 11 | 11 | 11 | 11 | 11 | 11 | 11 |
| 3) (3 | 4 | + 5 | 5 | ) – 4 | 7 | = 9 – 4 | 7 | = 4 | 4 | ; |
| 9 | 9 | 11 | 11 | 11 |
| 4) 18 | 3 | – (7 | 10 | + 3 | 11 | ) = 18 | 3 | – 11 | 2 | = 7 | 1 | . |
| 19 | 19 | 19 | 19 | 19 | 19 |