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CALCULEAZA APOI VERIFICA PRIN ACCEASI OPERATIE 7136+2321= P----------------- 8561+1328= P------------------

Răspuns :

9457 2321+7136=9457 9889 1328+8561=9889
7136+ 9457-2321=7136
2321
--------
9457


8561+ 9889-1328=8561
1328
--------
9889