This should be at your local mirror.
Jim Hef{}feron Saint Michael's College
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The following information was provided by our fellow contributor:
Name of contribution: xlop Version number: 0.23 Author's name: Jean-Côme Charpentier Summary description: Xtra Large OPerations (process and display operations) License type: lppl
Announcement text: ---------------------------------------------------------------------- Xlop (eXtra Large OPeration) will typeset arithmetic problems either in-line or “as in school” (using French school conventions). So for example, opadd{2}{3} can give either $2+3=5$ or something similar to: egin{tabular}{r} 2\ +3\ hline 5end{tabular}.
This release fix some bugs and offers an english manual. ----------------------------------------------------------------------
This package is at http://tug.ctan.org/tex-archive/macros/generic/xlop/ . Information is at http://tug.ctan.org/pkg/xlop (it may take a day for the information to appear). We are supported by the TeX Users Group http://www.tug.org . For your users group see http://www.tug.org/usergroups.html .