1. Zadatak

Prvi način:

$$52328-28:2+(8\cdot5320+5320\cdot2)+4827\cdot5\cdot(145-145) =52328-14+(8\cdot5320+5320\cdot2)+4827\cdot5\cdot0$$ $$=52328-14+5320\cdot(8+2)+0$$ $$=52328-14+5320\cdot10$$ $$=52328-14+53200$$ $$=52314+53200$$ $$=105514$$

Drugi način:

$$52328-28:2+(8\cdot5320+5320\cdot2)+4827\cdot5\cdot(145-145) =52328-14+(5320\cdot8+5320\cdot2)+4827\cdot5\cdot0$$ $$=52328-14+(42560+10640)+0$$ $$=52328-14+53200$$ $$=52314+53200$$ $$=105514$$