Description Ken Ken can be described simply as sudoku with basic math (addition, subtraction and/or multiplication and division).
He has edited countless books of crossword puzzles, Sudoku, Ken Ken, and all manner of brain-busters..
He is also the puzzlemaster on NPR\'s Weekend Edition Sunday and is founder and director of the annual American Crossword Puzzle Tournament.
Will Shortz has been the crossword puzzle editor of The New York Times since 1993.
His students regularly go on to be accepted at the most prestigious schools in Tokyo.
About the Author TETSUYA MIYAMOTO, the creator of Ken Ken, is a math teacher who runs a unique mathematics class for grade school children in Japan where he practices "The Art of Teaching Without Teaching." His teaching method and use of Ken Ken in his classroom has proven extremely successful.
This edition contains 100 Easy addition and subtraction Ken Ken puzzles with solving instructions and an introduction by puzzlemaster Will Shortz.
It\'s a fun, addictive, clever puzzle that\'s winning fans the world over.
Description Ken Ken can be described simply as sudoku with basic math (addition, subtraction and/or multiplication and division)
