Help children develop their math skills from an early age with Learning Resources MathLink Cubes Activity Sets. These cube sets are great for children of all ages and can be used to teach counting, sorting, addition and subtraction, multiplication and division, geometry, and more. Kids can use these cubes as a visual learning tool in lessons or to build structures during playtime. Suitable for ages three and up. - MathLink Cubes Activity Set - Preschool Math.