1) (6-4,94)*2,5-2,35=1,06*2,5-2,35=2,65-2,35=0,3
2) 0,18*(8,2+3,75)-1,051=0,18*11,95-1,051=2,151-1,051=1,1
3) 67,45-7,45*(3,8+4,2)=67,45-7,45*8=67,45-59,6=7,85
4) 28,6+11,4*(6,595+3,405)=28,6+11,4*10=28,6+114=142,6
5) 20,4*6,5+3,8*1,8=132,6+6,84=139,44
6) 7,2*3,6-4,8*5,4=25,92-25,92=0