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calculeaza sumele :
a) S= 2+4+6+.....+100

b) S= 3+6+9+....+90

c) S=11+22+33+....+1100

d) S=100+104+108+112+...300

VA ROG AJUTATMA URGENT DAU COROANA






























Răspuns :

2 ,4,6,8,10,12,14,16,18,20,22,24,26,28,30 ,32,34,36,38,40,42,44,46,48,50,52,54,56,58,60,62,64,68,70,72,74,76,78,80,82,84,86,88,90,92,94,96,98,100
   

3,6,9,12,15,18,21,24,27,30,33,36,39,42,45,48,52,55,58,62,65,68,72,75,78,82,85,88,
11,22 ,33,44,55,66,77,88,99,111
  
104,108,112,116,120,124,128,132,136,140,144,148,152,156,160,164,168,172,176,180,184,188,192,196,200,204,208,212,216,220224,228,232,236,240,244,248,252,256,260,264,266,270,274,278,282,286 290,294,298