\documentclass[a5paper,10pt, twocolumn, landscape]{article}
\usepackage{myXsim}

\author{}
\date{Septembre 2017}
\title{Bien rédiger et choisir la bonne opération}
\tribe{Troisème}

\DeclareExerciseCollection{problemes}
%\DeclareExerciseTagging{difficulty}
%\DeclareExerciseTagging{operation}

\begin{document}

\collectexercises{problemes}
%\xsimsetup{difficulty=easy}
\input{./collection_pb4op.tex}
\collectexercisesstop{problemes}

\printcollection{problemes}


\end{document}