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Puzzle Book: Sudoku for Adults Volume 3
Puzzle Book: Sudoku for Adults Volume 3
Current price: $14.99
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Size: OS
If there's one thing more challenging than your math book, it's a book of all numbers. The difference is that your textbook tells you if you have to divide, add, multiply or subtract equations in order to get the answers; but in this puzzle book you are left on your own. You have to figure out the reasoning behind the sequences. Can you do that?