All the challenge and fun of Brain Games--now for kids! Contains 121 number puzzles for kids age 6 and up.Puzzles include sudoku, hashi, number searches, hitori, math puzzles, evens/odds, minesweepers, vex-a-gon, and more.Spiral binding allows book to lay flat while in use.Complete answer key is located in the back of the book.160 pagesThis book will stretch kids' logic, computation, reasoning, and problem-solving skills, all while providing hours of entertainment.