I.
2540 + 1750 = 4290 kg in prima zi
1780 + 2750 = 4530 kg a doua zi
4290 + 4530 = 8820 kg total
II.
(2540 + 1780) + ( 1750 + 2750) = 4320 + 4500 = 8820 kg total
A doua zi s-au vandut 1780kg zahar. Cate kg au ramas in depozit?
2540 + 1750 + 2750 - 1780 = 5260 kg au ramas