Brain Teasing Sudoku Puzzle Book Digest Size
price per 1 unit
Improve math, logic, and critical thinking skills. Sudoku puzzles sharpen the mind. Each of these books contains over 300 puzzles arranged by easy, medium and hard skill levels. Their compact size makes them a logical take-along for breaks, commutes and vacations. Answer keys are included. From every direction, it's a formula calculated for productive fun.