А) 48*35+20 731:17+2109:37 1680+20 43+57 1700
______________ - ______________ = ________ _ _____ = ____ _
45*37+35 3942:54+1755:65 1665+35 73+27 1700
_ 100
___ = 1-1=0
100
б) 53*35-221 46*64-1306 16807:7 1634 1638
________ - _________ + ______ = ____ - ___ + 1 = 43-42+1=2
646:17 702:18 343*7 38 39