2. feladat megoldása
| 1 | 7 | – | 3 | 1 |
|
2 | 3 | – | 4 | 0 | – | 8 | 5 | = | – | 1 | 1 | 6 | |||||
|
|
2 | 5 | + | 1 | 5 | – | 3 | 5 | + | 2 | – | 8 | = | 1 | 7 | – | 6 | 8 | = | – | 5 | 1 | |
| – | 4 | 2 | + | 7 | 1 | – | 7 | + | 5 | – | 8 | + | 9 | = | 8 | 5 | – | 5 | 7 | = | 2 | 8 | |
| – | 3 | 3 | – | 1 | 9 | + | 2 | 1 | + | 1 | 2 | + | 4 | = | 4 | – | 1 | 9 | = | – | 1 | 5 | |
| 5 | 2 | + | 1 | 4 | – | 2 | 4 | – | 3 | 2 | + | 3 | 4 | = | 1 | 0 | 0 | – | 5 | 6 | = | 4 | 4 |