90,09-(87,44-(12,85+3,9)+0,981)

Question

90,09-(87,44-(12,85+3,9)+0,981)

Answer 1

1)12.85+3.9=16.75
2)87.44-70.69
3)70.69+0.981=71.671
4)90.09-71.671=18.419