8/31/26 - Teachers and Parents - You can now purchase a "forever" pass to MrNussbaum.com for $89. Your one-time purchase entitles you and your students to unlimited use of the entire site. It will never recur or renew. An annual subscription can always be purchased for $49 or a monthly subscription for $9.99.

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Your great uncle, Sir Mathalot has been taken prisoner in a mansion haunted by anti-math ghouls and spirits. You must use your addition, subtraction, multiplication, division, fractions, time and rounding skills skills to not only defeat these hideous beasts, but also to find and rescue your uncle. Be brave!

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