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Scrie toate nr.a) de 3 cifre identice b) care au la sute cifra4, iar la unitati cifra 5.

Răspuns :

a)3 cifre identice:111,222,333,444,555,666,777, 888,999
b)400,401,402,403,404...499
c)115,225,335,445,555,665,775,885,995