The workbook "Fundamentals" helps weaker students close basic gaps. Targeted practice for better understanding. The "Fundamentals" workbook is aligned with the chapter sequence in the student book and facilitates access to fundamental mathematical knowledge through numerous exercises. Specially marked pages provide intensive and varied practice of basic competencies. Tip boxes with examples and detailed, easy-to-understand explanations assist in solving tasks. A test at the end of each chapter checks the knowledge acquired.