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Headscratchers by Brian Hobbs, Rob Eastaway
$32.99 NZD
Stock: 1
Category: Crosswords, Sudoku & Games
A mind-bending collection of puzzles from the New Scientist published in book form for the first time
Maths on the Back of an Envelope: Clever Ways to (Roughly) Calculate Anything by Rob Eastaway
$25.00 NZD
Stock: 0
Category: Popular Science
Does that statistic make sense? How much will this round of drinks come to? And what are the chances of winning the lottery? Twice? Learn how to do complex maths with nothing but the back of an envelope, a pencil and some good old-fashioned brain power. Doing mathematics without a calculator seems like ...Show more
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