1) -0,6+(-4,4+3,8)=-0,6-4,4+3,8=-1,2
2)-1,8-(-4,8+2,9)=-1,8+4,8-2,9=0,1
3)-0,56+(3,8-2,44)=-0,56+3,8-2,44=0,8
4)-3,24-(-4,76-2,9)=-3,24+4,76+2,9=4,42
5)-0,37+(4,2-4,66)=-0,37+4,2-4,66=-0,83
6)-13,96-(-15,87-2,51)=-13,96+15,87+2,51=4,42
7)-0,23+(5,3-6,77)=-0,23+5,3-6,77=-1,7
8)-19,47-(-20,69-3,32)=-19,47+20,69+3,32=4,54