Calculati sumele:S=1+2+3+4+.........100
S=2+4+6+....+100
S=5+10+15+......100
17+28+35+233+22+85
475+119+387-175-19-187
423+513+174+377+287+626
743+581+446-543-181-346
VA ROG E URGENT!!!!!!!