1) (2,35•6,8-6,793)•0,4+1,3252 =
= (17-793)*0,4+1,3252=10,027*0,4+1,3252=4,0108+1,3252=5,336
2)3,4•6,5-0,25•(17,6•1,5+3,28)=
= 22,1-0,25*(26,4+3,28)=22,1-0,25*29,68=22,1-7,42=14,68
3)(35,8-15,3)•0,4+0,6•12,4-(18,6-13,8)•0,5 =
= 20,5*0,4+7,44-4,8*0,5=8,2+7,44-2,4=13,24