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Prime Numbers: The Most Mysterious Figures in Math
Original price $35.95Original price $35.95 - Original price $35.95Original price $35.95Current price $33.95$33.95 - $33.95Current price $33.95A fascinating journey into the mind-bending world of prime numbers Cicadas of the genus Magicicada appear once every 7, 13, or 17 years. Is it ju...
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The Liar Paradox and the Towers of Hanoi: The 10 Greatest Math Puzzles of All Time
Original price $15.95 - Original price $29.95Original price $15.95 - Original price $29.95Original price $15.95$13.95 - $27.95$13.95 - $27.95Current price $13.95A walk through history's most mind-boggling puzzles Ever since the Sphinx asked his legendary riddle of Oedipus, riddles, conundrums, and puzzles o...
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Chinese Brain Twisters: Fast, Fun Puzzles That Help Children Develop Quick Minds
Original price $15.95 - Original price $24.95Original price $15.95 - Original price $24.95Original price $15.95$13.95 - $22.95$13.95 - $22.95Current price $13.95A smart way to teach children to think logically and creatively. One of the most precious gifts you can offer a child is a sharp mind. The 56 puzz...
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