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