Mathematics
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1000+ Sudoku All Medium Puzzles: Sudoku medium book, puzzles for adults 1000+
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200 Hard Futoshiki Puzzles: Japanese Puzzles Book
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2023-2024 Number Sense Challenge Contest Materials
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2025 Calcudoku: 365 Medium (6×6) Puzzles for Every Day of the Year
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20870;周率の最初の百万桁
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50th IMO – 50 Years of International Mathematical Olympiads
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6 Virginia SOL Math Practice Tests for Grade 6 Students: A Complete Guide to Building Math Mastery and Excelling on the Virginia SOL Test
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A Beginner’s Guide to Mathematical Logic
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A First Course in Complex Analysis
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A Student Solutions Manual for Problem Solving Approach to Mathematics for Elementary School Teachers
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A Treatise On the Circle and the Sphere, by Julian Lowell Coolidge.
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Activity Book: Logic Puzzles for Adults & Seniors: 500 Hard Puzzles (Sudoku – Fillomino – Straights – Futoshiki – Binary – Slitherlink – Sudoku X – Ma
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