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calculeaza grupand termenii in mid convenabil 1225+1227+1229+1231+2+5775+5773+5771+5769

Răspuns :

(1225+5775)+(1227+5773)+(1229+5771)+(1231+5769)+2=7000+7000+7000+7000+2=14000+14000+2=28000+2=28002