% use \setcounter{MaxMatrixCols}{11} in preamble
\begin{bmatrix}
1 & 1 & -1 & -1 & 0 &  0 & 0 &  0 &       0 &     0 &    0 \\
0 & 0 &  0 &  0 & 1 & -1 & 0 &  0 &       0 &     0 &    0 \\
0 & 0 &  0 &  0 & 0 &  0 & 1 & -1 &       0 &     0 &    0 \\
0 & 0 &  0 &  0 & 0 &  0 & 0 &  0 & -1/1000 &     0 &    0 \\
0 & 0 &  0 &  0 & 0 &  0 & 0 &  0 &   1/100 & -1/20 & 1/20 \\
0 & 0 &  0 &  0 & 0 &  0 & 0 &  0 &       0 &     0 &    0 \\
0 & 0 &  0 &  0 & 0 &  0 & 0 &  0 &       0 &     0 &    0
\end{bmatrix}