George Lenchner

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3 books

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Math Olympiad contest problems for elementary and middle schoolsGeorge Lenchner
Math Olympiad contest problems for elementary and middle schools
George Lenchner · 1997 · 280 pages
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Mathematical Olympiad contest problems for childrenGeorge Lenchner
Mathematical Olympiad contest problems for children
George Lenchner · 1990 · 176 pages
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Creative problem solving in school mathematicsGeorge Lenchner
Creative problem solving in school mathematics
George Lenchner · 1983 · 295 pages
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