Magnetic Base Ten Block Magnetic Base Ten Block - Teaching math with base ten manipulative allows kids to do hands-on exercises and makes learning basic math skills easy. These proportional foam magnetic pieces are the perfect visual aid for teaching base ten basics. This base ten math manipulative set includes 100 single units, ten 10-unit rods, ten 100-unit squares and one 2-dimensional graphic of a 1000-unit cube. Perfect for helping young students learn counting, grouping, place value, numeration, and multiplication. The magnetized foam pieces are easy to grip and place on magnetic whiteboards. This classroom demonstration tool is also useful for hands-on learning in small or large groups..