Mathematics study guide for public high school entrance exams, with a detailed table of contents. - Title: Focus Gold Smart Mathematics I + A - Series: Focus SERIES - Table of Contents: Details of each chapter related to mathematics - Study Guide: For public high school entrance exam preparation - Included Items: Answer Key - Publisher: Suken Shuppan - Language: Japanese - Format: Booklet A set of 3 books, including the answer key and a formula collection. The contents are clean with no markings, and in very good condition.