5Crossword Puzzles for Kids Age 7 up such a lots of fun. Kids will love to solve puzzles. Crossword Easy Puzzle Books for kids 7 8 9 10 11 12 ages up help improve language skills, logical reasoning, and even their knowledge of the world. The book includes 90 easy crossword puzzles with less than 10 words per puzzle. Great crossword for kids activities books that provides a perfect first crossword puzzle easy.