23.47-19.584=3.886 3.886+10.2=14.086
0.83+81.2=82.03 82.03-12.163=69.867 401-69.867=331.133
23,47-19,584+10,2=14,086
401-(0,83+81,2-12,163)=331,133
1)0,83+81,2=82,03
2)82,03-12,163=69,867
3)401-69,867=331,133
