Răspunsuri

  • Utilizator Brainly
2014-04-02T22:17:24+03:00
2+4+6+8+10+12+14+16+18=90
1+3+5+7+9+11+13+15+17=81
90-81=9
1 5 1
2014-04-02T22:41:14+03:00
Suma numerelor pare : 2+4+6+8+10+12+14+16+18=90 Suma numerelor impare : 1+3+5+7+9+11+13+15+17=81 Scadem sumele : 90-81=9