(1000 – 775): (85:17) = 45
72:18: (732 – 539) = 4/193
92 : 23 - (102 + 25) = - 123
846 : (93:31) = 282
(1000 – 775): (85:17) = 45
72:18: (732 – 539) = 4/193
92 : 23 - (102 + 25) = - 123
846 : (93:31) = 282