With this material, your students will more easily understand the structure of the decimal system for a lot of exercise possibilities in the decimal number system. The relationship between “ones”, “tens”, “hundreds” and “thousands” is quickly understood. The students’ insight into the decadal system is deepened through bundling and swapping tasks. The tens and hundreds transitions become clear. Your students can also use the material to set up and solve arithmetic problems and equations. They recognize proportions and can clearly break down numbers. Overall, the system blocks offer a wide range of possible uses for a more varied math lesson.