EARLY MATH SKILLS: Teach addition and subtraction in a tactile way with these MathLink Cubes! VISUAL & TACTILE LEARNING: Provides a hands-on visual aid to math lessons, and doubles as an open-ended building toy! COLORFUL: MathLink come in a variety of colors and come with activity cards focused on addition, subtraction, sequencing, and more ACTIVITY GUIDE INCLUDED: 115 Mathlink cube set with an activity guide for sequencing, math skills, and more Ideal for ages 4+