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Grade Range: 6 - 11
Any Sudoku fans in your classroom? Send them to this site that provides problem-solving techniques, helpful for successfully conquering some of the most fiendish puzzles. Learn about crosshatching, slicing and dicing, and "penciling in." Discover the five rules that stress finding numbers for squares, rather than finding squares for umbers. This truly is a site for the Sudoku aficionados among us.
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