2

I want to write a primary school sheet of exercices (additions in columns) with big digits in LaTeX. When i want to do two columns, it is easy with xlop, but i can't to do three columns!

How to do Three column Additions? Like this:

1
(source: amsi.org.au)

I only need format it, it isn't necessary to solved it.

  • Do you need LaTeX to calculate the answer, or merely format it? – Steven B. Segletes Aug 11 '14 at 12:14
  • I only need format it. I edit the question... thanks – norbux Aug 11 '14 at 12:19
4

Try this:

\documentclass{article}
\usepackage[table]{xcolor}
\begin{document}
\arrayrulecolor{blue!25}% specifies the \hline colour using xcolor

\[ \begin{array}{*4r}
     &{}^11&{}^16&3\\
     &5    &4    &9\\
     &2    &7    &6\\ \hline
    +&9    &8    &8\\ \hline
   \end{array} \]

\end{document}

This yields:

enter image description here

The colours are slightly gratuitous:)

EDIT Actually, I don't like this as the columns have different widths. Using the array we can fix this:

\documentclass{article}
\usepackage[table]{xcolor}
\usepackage{array}
\begin{document}
\newcolumntype{C}{>{\hfill$}p{1em}<{$\hfill}}
\arrayrulecolor{blue!25}
\[ \begin{array}{cCCC}
     &{}^11&{}^16&3\\
     &5    &4    &9\\
     &2    &7    &6\\ \hline
    +&9    &8    &8\\ \hline
   \end{array} \]

\end{document}

Now we have:

enter image description here

It's a bit of a hack. Hopefully some one else will contribute a more elegant solution.

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