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Scientific American
1 个月
Math Puzzle: Play Architect with These Houses of Cards
Hans-Karl Eder is a German mathematician, educator and author who also works as a MINT ambassador to get young people ...
来自MSN
7 个月
33 Math Puzzles (with Answers) to Test Your Smarts
(And adults, of course!) These math puzzles test your brain and critical-thinking skills and provide some constructive, educational fun. Math riddles and puzzles come in plenty of different varieties.
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