Supervised by a certified Class 1 Electrician (with experience guiding Class 3 examinees) Calculation Training Compendium - Selected 6 Themes, Totaling 277 Problems - For the Class 3 Electrician Exam! Price: 7500 yen A preparatory book for the Class 3 Electrician Exam. Designed to help you learn the necessary and sufficient mathematical knowledge for the Class 3 Electrician Exam. This book is useful for everyone, from those starting to study for the Class 3 Electrician Exam to those who want to improve their understanding of mathematics. Features of this textbook: ① Classified into 6 essential themes for the Class 3 Electrician Exam, allowing you to focus on the content you want to strengthen. ② Contains a total of 277 problems. You can deepen your understanding by practicing with various problem patterns. 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 time possible.