Question

scrie toate numerele naturale care au cifra unitatilor 1

Answer 1

11,21,31,41,51,61,71,81,91  pană la 1000

Answer 2

101 111 121,131,141,151,161,171,181,191,201,211,231,241,251,261,271,281,291,301,311,321,331,341,351,361,371,381,391,401,411,421,431,441,451,461,471,481,491,501,511,521,531,541,551,561,571,581,591, 601,611,621,631,641,651,661,671,681, 691,701,711,721,731,741,751,761,771, 781,791,801,811,821,831,841,851,861, 881,891,901,911,921,931,941,951,961,971,981,991