!??!!?!!?!!??!???! # 7
А) 1280-850:5*4=600 960:3+2800:400=327 4089+2005-47*2=6000 270*3+210:42=815 425:25*900-998=4302 4870-2593+25*12=2927 б) 6*3209:3=6418 8*2023:4=4046 5*23417-10305:5=105024 4*12310:2-5890=18730