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Efectueaza adunarile prin calcul in scris
129 386 + 68 888 + 298 645
225 074 + 238 509+ 489 435
437 210 + 109 +372 200+ 938


Răspuns :

129386+68888+298645=
198274+298645=496919
225074+238509+489435=
463583+489435=953018
437210+109+372200+938=
437319+373138=810457