Cate numere de la 1 la 1000 nu contin cifra 7?VA ROG REPEDE!DAU COROANA!!
Răspunsuri la întrebare
Răspuns:
1,2,3,4,5,6,8,9,10,11,12,13,14,15,16,18,19,20,21,22,23,24,25,26,28,29,30,31,32,33,34,35,36,38,39,40,41,42,43,44,45,46,48,49,50,51,52,53,54,55,56,58,59,60,61,62,63,64,65,66,68,69,80,81,82,83,84,85,86,88,89,90,91,92,93,94,95,96,98,99,100,101,102,103,104,105,106,108,109,110,111,112,113,114,115,116,118,119,120,121,122,123,124,125,126,128,129,130,131,132,133,134,135,136,138,139,140,141,142,143,145,146,148,149,150,151,152,153,154,155,156,158,159,160,161,162,163,164,165,166,168,169,180,181,182,183,184,185,186,188,189,190,191,192,193,194,195,196,198,199,200,201,202,203,204,205,206,208,209,210,211,212,213,214,215,216,218,219,230.......................................................................................................................................................................................................................................................1.000
1................1000=1000 nr
1000-7inmultit cu 10=130 1000-130=870 numere care nu contin 7