Math activity set gives children a hands-on lesson in early math fundamentals every time they build. This engaging activity set pairs 100 MathLink Cubes with 15 double-sided activity cards. 30 learning challenges on the cards make math lessons fun. Using the colorful cubes as a handy visual aid, children can learn the fundamentals of addition and subtraction, practice sequencing through color and shape recognition, or even learn about perspective through engaging 3D building challenges. When math lessons end, MathLink Cubes double as fun building toys. The sturdy cubes come in 10 bright colors and can be snapped together or popped apart over and over again. Activity set is designed for children ages 4 and above.