Question

scrie toate numerele care: a)au aceasi cifra la sute si la zeci si sunt numere impare b)au cifra sutelor cu o unitate mai mare decat cifra zecilor si sunt numere pare;c)au suma celor trei cifre egala cu 5

Answer 1

a) 111,113,115,117,119,221,223,225,227,229,331,335,337,339,441,443,445,
447,449,551,553,555,557,559,661,663,665,667,669,771,773,775,779,881,883,885,887,889,991,993,995,997,999
b)210,212,214,216,218,320,322,324,326,328,430,432,434,436,438,540,542,544,546,548,650,652,654,656,658,760,762,764,766,768,870,872,874,876,878,980,982,984,986,988
c)104,203,302,122,131,311,221,401,104,140