Education , Elementary
Education , ElementaryThe universe in a handkerchief: Lewis Carroll’s mathematical recreations, games, puzzles, and word plays
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Education , ElementaryThe William Lowell Putnam Mathematical Competition 1985-2000: Problems, Solutions, and Commentary
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Education , ElementaryWacky word problems: games and activities that make math easy and fun
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Education , ElementaryWeird Science: 40 Strange-Acting, Bizarre-Looking, and Barely Believable Activities for Kids
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