Education , Elementary
Education , Elementary102 combinatorial problems from the training of the USA IMO team
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- Education , Elementary
400 узоров. Для развития моторики мелких мышц у детей дошкольного возраста
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Education , ElementaryA Gardner’s Workout: Training the Mind and Entertaining the Spirit
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Education , ElementaryChallenges in Geometry: for Mathematical Olympians Past and Present
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- Education , Elementary
Impossible?: surprising solutions to counterintuitive conundrums
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