Explicație pas cu pas:
(28:2+68-39)×0=0
6+(81:9×9-9)+199+199×1= 6+(9-9)+199+199×1=6+0+199+199×1=6+0+199+199=404
18×106+(300-60):8+2387= 18×106+240:8+2387=1908+30+2387=4325
(125+802)×2-1082=927×2-1082 = 1855-1082= 772
(425×2+30882):2+139 = (850+30882):2+139= 31732:2+139= 15886+139= 16005