Răspuns :

Răspuns:

1. 45297+33812=79109

proba: 979109-45297=33812

2. 357816+238593=596409

proba: 596409-357816=238593

3. 42852-28976=13876

proba: 13876+28976=42852

4. 305000-136532=168468

proba: 136532+168468=305000