像这样吗?
\documentclass{article}
\usepackage{pgffor}
\usepackage{pgfmath}
\def\sz{11}
\begin{document}
\foreach \b in {1,...,\sz}{%
\noindent%
\foreach \a in {1,2,...,\sz}{%
\pgfmathparse{int(\a*\b)}%
\makebox[2em][r]{${\pgfmathresult}$}
}
}
\end{document}