Răspuns :
cate kg cartofi s-au recoltat de pe al2lea lot?
786+548=1334 kg
Cate kg s-au recoltat de pa al3lea lot?
3048-(786+1334)=928 kg
786+548=1334 kg
Cate kg s-au recoltat de pa al3lea lot?
3048-(786+1334)=928 kg
1+2+3=3048kg
1=786kg
2=1+548kg
3=3048kg-(1+3)
2=786kg+548kg
2=1334kg
3=3048kg-(786kg+1334kg)
3=3048kg-2120kg
3=928kg
1=786kg
2=1+548kg
3=3048kg-(1+3)
2=786kg+548kg
2=1334kg
3=3048kg-(786kg+1334kg)
3=3048kg-2120kg
3=928kg