\documentclass{mumie.problem.gwtmathlet}
%$Id$
\begin{metainfo}
  \name{
    \lang{de}{Test}
  }
  \begin{description}
    \lang{de}{Test desc}
  \end{description}
  \corrector{system/problem/GenericCorrector.meta.xml}
  \begin{components}
    \component{js_lib}{system/problem/GenericMathlet.meta.xml}{gwtmathlet}
  \end{components}
  \begin{links}
  \end{links}
  \creategeneric
\end{metainfo}

\begin{content}

\usepackage{mumie.genericproblem}

\begin{problem}

    \begin{question}

        \begin{variables}
            \randint[Z]{a}{1}{2}
            \randint[Z]{b}{10}{20}
            \function[calculate]{f}{a-b}
        \end{variables}

        \type{input.number}
        \field{rational}

        \lang{de}{\text{Berechne:}}
        \begin{answer}
            \text{\var{a}+(-\var{b}) =}
            \solution{f}
        \end{answer}

    \end{question}

\end{problem}

\embedmathlet{gwtmathlet}

\end{content}