You make the words by solving the equations on a calculator
and then flipping it upside down.
Use the "Printable HTML" button to get a clean page,
in either HTML or PDF,
that you can use your browser's print button to print.
This page won't have buttons or ads, just your puzzle.
The PDF format allows the web site to know how large a
printer page is, and the fonts are scaled to fill the page.
The PDF takes awhile to generate. Don't panic!