Solving Sudoku Puzzles

Key concepts students will learn:

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  Each row, column, and box in Sudoku must contain the numbers 1 through 9.

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  In Sudoku, no row, column, or box may repeat a number.

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  Use cross hatching to figure out where a number fits by eliminating possibilities.

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  If a square already has a number in the same box, column, or row, you can eliminate that number as a possibility for the empty square.