Question

I don't get this probken

Answer 1

The last number is in parenthesis because it's a negative: nevermind that for now.
What you want to do is 29-4.37 FIRST.
That gets you:
24.63. NOW you want to subtract the last number, because adding a negative = subtracting a positive.
24.63 - 5.68
Solve:
18.95

Answer 2

First, do 29-4.37. Then take that number and add it with -5.68 and that will be your answer.