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Care sunt numerele formate din zeci si unitati care au suma cifrelor 6?Dar celecare au suma cifrelor egala cu 8?

Răspuns :

     42, 24 51,15,60,  33 = suma cifreor 6
     44, 26,62, 35,53 = 8
60,,,51,,,42,,,33,,24,,15,,,,,,,,,,,,,,,,,,,,,,,17,,,26,,,35,,,44,,53,,62,,,71,,80