Build-and-Play Brain Games: With this all-in-one set, little ones build and play over 40 educational games for kids that boost critical thinking, early math, and fine motor skills! Solo or Head-to-Head Play: Whether kids are challenging their own skills or taking on friends in a friendly competition, there are brain games for kids galore! Works with All MathLink Cubes Sets: The MathLink Cubes Brain Puzzle Challenge includes 64 colorful MathLink Cubes that work with all existing MathLink Cubes sets! Ages and Skills: Specially designed with little ones in mind, this math game for kids helps little ones as young as 5 build STEM skills including early math and critical thinking! Give the Gift of Learning: Whether you’re shopping for holidays, birthdays, or just because, award-winning educational toys from Learning Resources help you discover new learning fun every time you give a gift! Learning is Where We Play: Discover how we turn a childhood love of play into a lifelong love of learning with a visit to our brand store! Ages 5+ 80 Pieces