\documentclass{article}
\usepackage[utf8]{inputenc}
\usepackage[T1]{fontenc}
\usepackage{siunitx}
\usepackage[pdftex,active,tightpage]{preview}
\usepackage{tikz}
\usetikzlibrary{decorations.pathmorphing,shadows}
\begin{document}
\begin{preview}
\tikzstyle{noise}=[circle,
    drop shadow,
    minimum size=0.5cm,
    draw=black,
    fill=white,
    decorate,
    decoration={random steps,segment length=2pt,amplitude=2pt}]
\begin{tikzpicture}
    \draw (1,1) grid (10,10);
    \foreach \row in {1,2,...,10} {
        \foreach \column in {1,2,...,10} {
            \pgfmathsetmacro\result{\row+\column*10-10}
            \node [noise] at (\row,\column) {\pgfmathprintnumber{\result}};
            };
        };
    \draw [|-|] (1,0.5) -- (2,0.5) node [midway,below] {\SI{0.5}{\milli\meter}};
    \draw [|-|] (1,0) -- (10,0) node [midway,below] {\SI{4.5}{\milli\meter}};
\end{tikzpicture}
\end{preview}
\end{document}