Vertical Multiplication Table

Type: tool

A vertical multiplication table looks as follows.

\[
\begin{array}{r@{\,}l}
   & AB \\
\times & CD \\
\hline
   & D\cdot B \\
   & D\cdot A\cdot 10 \\
   & C\cdot B\cdot 10 \\
+  & A\cdot C\cdot 100 \\
\hline
   & \mathrm{SUM}
\end{array}
\]