Вычислите:7.5/0.6-2.5
(68:2 5/6-42*0.1):1.1
2/3*0.375+2.68:0.8
7.5:0.6-2.5=12.5-2.5=10 68:2х5\6=68:2х6+5\6=68:17\6=24 42х0.1=4.2 24-4.2=19.8 19.8\1.1=18 2\3х0.375=0.25 2.68\0.8=3.35 0.25+3.35=3.6 18\3.6=5 10\5=2