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Calculeaza in scris, apoi fa proba prin operatia inversa:
3.570 :51
18.546:6
4.407 :36


Răspuns :

Răspuns:

3570:51=70

70×51=3570

18546:6=3091

3091×6=18546

4407:36=121,41

121,41×36=4407