Not only are these puzzles fun but KenKen helps children improve concentration, logic and arithmetic skills. Children ages 9-12 have excelled in math and gained real-life problem solving skills all from playing a puzzle so engaging that it keeps them coming back for more. This third volume of "I Can KenKen" features: - 75 easy addition and subtraction puzzles - Introduction and how to solve instructions from Marilyn Burns - "Home and Classroom Guide for Parents and Teachers" by Ms. Burns - Forward by Will Shortz
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