10-(9,25-(1,73+(8,4-(3,03+1,7))+0,4))=6,55
3,03+1,7=4,73
8,4-4,73=3,67
3,67+0,4=4,07
1,73+4,07=5,8
9,25-5,8=3,45
10-3,45=6,55
