<span> 1) (1070-104 040 : 2312) * 74 + 6489=(1070-45)*74+6489=1025*74+6489=82339 2) (38 529 + 205 * 87) : 427 - 119=(38529+17835)/427-119=56364/427-119=132-119=13</span>
2/5, 6/50, 9/20, 1/8, 1/25, 96/250, 3/8, 24/25
1384-186*7=82(ост.)
154*7+153=1078
1216-147*8=40(ост.)
194*7+102=1358