documentclass[tikz,border=3.14mm]{standalone}
usetikzlibrary{matrix}
begin{document}
begin{tikzpicture}
 edeflstadd{{0,16,-12}}
 edeflstsub{{-4,0,6}}
 matrix[matrix of math nodes,nodes={text width=1.5em}] (mat)
 {
    0 & 2 & 1 & 0 & 2 \
    3 & -1 & 2 & 3 & -1\
    4 & -4 & 1 & 4 & -4\
 };
 foreach X [evaluate=X as Y using {int(X+2)}]in {1,2,3}
 {pgfmathtruncatemacro{mylabel}{lstadd[X-1]}
 draw[purple,-latex,thick] (mat-1-X.north west) -- (mat-3-Y.south east)
 node[pos=1.1]{mylabel};
 pgfmathtruncatemacro{mylabel}{lstsub[X-1]}
 draw[purple,-latex,thick] (mat-3-X.south west) -- (mat-1-Y.north east)
 node[pos=1.1]{mylabel};
 }
end{tikzpicture}
end{document}