\documentclass{article}

\usepackage{amsmath}
\usepackage{amsfonts}
\usepackage{multicol}
\usepackage[inline]{enumitem}
\usepackage[left=10mm, right=0mm, top=15mm, bottom=15mm]{geometry}

\sloppy
\begin{document}
\small
\raggedright
{% for task in tasks %}
\begin{multicols}{2}
\section{ {{ task.instruction }} }
    \begin{enumerate}[label={(\roman*)}]
        {% for problem in task.problems%}
            \item $f(x) = {{ problem }}$,
        {% endfor %}
    \end{enumerate}
\end{multicols}
{% endfor %}

\newgeometry{margin=0mm}
\newpage

\tiny
\begin{enumerate}
\begin{multicols}{3}
\setlength{\columnsep}{-10cm}
{% for task in tasks %}
    \item \begin{enumerate*}[label={(\roman*)}]
        {% for awnser in task.awnsers %}
            \item ${{ awnser }}$,
        {% endfor %}
    \end{enumerate*}
{% endfor %}
\end{multicols}
\end{enumerate}
\end{document}