Simplify :

67 + 13.85 - 29.904

Given expression:

= 67 + 13.85 - 29.904
= 67.000 + 13.850 - 29.904 $\quad$ [Converting into like decimals]
= (67.000 + 13.850) - 29.904
= 80.850 - 29.904
= 50.546

$\begin{array}{r|r} 67.000 & 80.850 \ +\phantom{0}13.850 & -\phantom{0}29.904 \ \hline 80.850 & 50.946 \ \hline \end{array}$

Hence, the answer is 50.946