Question

Câte numere naturale de doua cifre distincte exista

Answer 1

Numere sunt : 10,12,13,14,15,16,17,18,19,20,21,23,24,25,26,27,28,29,30,31,32,34,35,36,37,38,39,40,41,42,43,45,46,47,48,49,50,51,52,53,54,56,57,58,59,60,61,62,63,64,65,67,68,69,70,71,72,73,74,75,76,78,79,80,81,82,83,84,85,86,87,89,90,91,92,93,94,95,96,97,98
Raspuns : 81 de numere

Succes !!

Answer 2

Trebuie sa le scri pe toate nr de 2 cifre excetand 11 22 33 44 55 66 77 88 99
Si trebuie sa le numeri si sunt 81 de numere
Succes !!