When dealing with numbers and number ranges, children develop a system in their minds that helps them process and categorize. This hands-on and versatile approach to numerical materials is especially beneficial for children who find this challenging. This work explores the number range up to 100, starting from the unit to the ten, and enables the establishment of a number structure that serves as the foundation for all arithmetic operations. The colorful and appealing materials promote learning success and enjoyment! 40 pages, color print.