90.21 :5 -73.17*8 -52.22:1.6 + 43.7:0.4

.............ответ:         -490,7055

1)90.21:5=18,042
2)73.17•8=585,36
3)52.22:1.6=32.6375
4)43.7:0.4=109.25
5)18.042-585.36=-567.318
6)-567.318-32.6375=-599.9555
7)-599.9555+109.25=-490.7055