zadanie 7
a) 3/5×0,1-10,08=0,6×0,1-10,08=−10,02
b) 5+(-3 1/6)×0,6=5+(-19/6)×6/10=5+(-1,9)=3,1
c) 5,75:(-1/4)+25=5,75:(-0,25)+25=2
d) 2 1/3-3,5×1 3/7=2 1/3- 7/2×10/7=2 1/3-5= 2 2/3
zadanie 8
a) 5 1/3 - 7,25- 3/4=-1 11/12-9/12=-2 2/3
b) 1 5/6- 1 1/12- 0,5:2/3=1 10/12-1 1/12-1/2×3/2=9/12-3/4=9/12-9/12=0
c) 3^2-2^3×(-1/8)=9-8×(-0,125)=9-1=8
d) (-4/5):(0,2×2^3-0,8)= (-0,8):(0,2×8-0,8)= (-0,8):(1,6-0,8)= (-0,8):0,8=-1
