Inclusive mathematics instruction is possible. The worksheets with exercises in this volume help you to improve the mathematical competence of all students in percentage and interest calculation, complementing the textbook. The clearly structured material, which deepens and solidifies skills in calculations with increasing difficulty, can be used immediately and allows for independent study and review. For students with special educational needs, there are also worksheets available that convey the content in very small steps. Additionally, the volume offers methodological-didactic tips on the pitfalls of percentage and interest calculations, as well as suggestions on how to incorporate cooperative learning forms into the classroom. To allow for further differentiation, the worksheets are provided as editable Word files.