\ANG{ Korrigiere, falls erforderlich:
\begin{enumerate}
\item $15-4\cdot 5=55$
\item $5\cdot 5: 5=5$
\item $\frac12+\frac14=\frac26$
\end{enumerate}
}

\LSG{\begin{enumerate}
\item $15-4\cdot 5=-5$
\item OK
\item $\frac12+\frac14=\frac34$
\end{enumerate}}

\begin{tiny}   Quelle: PM 3/43.\ Jg.\ 2001     \end{tiny}