Make math fun with amazing brain-teasing puzzles! Hours of enjoyment while developing critical thinking skills. Developing critical thinking skills has never been more fun with Train Your Brain: Math Games. Kids will be introduced to math principles through engaging and entertaining mind-bending activities! OVER 55 BRAIN-TEASING PUZZLES: Hours of activities to enjoy! GAMES FOR EVERY BRAIN: Offering a wide variety of puzzles and brain twisters, including word problems, number puzzles, sequence challenges, matching puzzles, grid games, and more! ANSWER KEY: Solutions to every puzzle are provided in the back of the book. Ages 7 & up.