- Thread starter DannMcGrew
- Start date

- Joined
- Oct 23, 2008

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- 2,279

This sort of things reminds me of how much I once enjoyed math puzzles.

Rube Goldberg multiplication.

My sister got me 'The Ultimate Mathematical Challenge', a book that has a puzzle for every day of the year + crossnumbers and other odd challenges inbetween.This sort of things reminds me of how much I once enjoyed math puzzles.

I'm on week 7 and loving it!

*Sighs at yet another mega nerd page*

The original Johnny Ball video is excellent.