Supervised by a certified Class 1 Electrician (with experience guiding Class 3 exam candidates) Calculation Training Compendium: A Preparation for the Class 3 Electrician Exam! ~Includes 277 Carefully Selected Problems Across 6 Themes~ Price: 7500 yen This book is a preparation guide for the Class 3 Electrician Exam. It is designed to help you learn the necessary and sufficient mathematical knowledge for the Class 3 Electrician Exam. This book is useful for those who are just starting to study for the Class 3 Electrician Exam and for those who want to improve their understanding of mathematics. Features of this textbook: ① You can focus on the content you want to strengthen because it is categorized into 6 essential themes for the Class 3 Electrician Exam. ② A total of 277 problems are included. You can deepen your understanding by practicing with various types of problems. ③ The content is specifically designed for the Class 3 Electrician Exam. There is no irrelevant content, so you can acquire only the necessary knowledge in the shortest and fastest way possible.