% make -C ~/enseignement/auto-qcm/auto-multiple-choice MAJ ; make -C ~/enseignement/auto-qcm/auto-multiple-choice/doc/sty styonly; pdflatex n

\documentclass[a4paper]{article}
\usepackage{fp}
\usepackage{multicol}
\usepackage[indivanswers,insidebox]{automultiplechoice}
\begin{document}

\AMCnumericOpts{scoreexact=5,approx=15,scoreapprox=3}

\element{grq}{
  \begin{questionmultx}{expo1}
    How much is $\exp(-100)$?

    \AMCnumericChoices{exp(-100)}{digits=3,decimals=2,exponent=2,vertical}

  \end{questionmultx}
}

\element{grq}{
  \begin{questionmultx}{expo2}
    How much is $-\exp(100)$?

    \AMCnumericChoices{-exp(100)}{digits=3,decimals=2,exponent=2}

  \end{questionmultx}
}

\element{grq}{
  \begin{questionmultx}{scientific}
    How much is $9.97\times10^{25}$?

    \AMCnumericChoices{9.97e25}{
      digits=3,decimals=2,exponent=2,expovertical,
      sign=false,exposign=false
    }

  \end{questionmultx}
}


\onecopy{5}{

  \hspace*{\fill}\namefield{\fbox{
      \begin{minipage}{15em}
        Name and surname:\vspace*{3ex}\par
        \noindent\dotfill\vspace{2mm}
      \end{minipage}
    }}

  \begin{center}
    \bf\Large Questions
  \end{center}

  \insertgroup{grq}

}

\end{document}
