Thank you for viewing. Regarding shipping: For example, Those who purchase between the night of the 1st (Monday) and the 7th (Sunday) Shipping on the 13th (Saturday) or 14th (Sunday) Those who purchase between the night of the 8th (Monday) and the 14th (Sunday) Shipping on the 20th (Saturday) or 21st (Sunday) If you purchase multiple books, We may be able to offer a discount on shipping. Please comment. (It may not be possible depending on the thickness of the books) If you purchase multiple items without commenting, We may ship them together. The answer key and explanations are digital and do not include a booklet. You can view the answer key and explanations by scanning the 2D code at the bottom of the corresponding main page. High-level practice text with an eye towards entrance exams for difficult universities From the first year of high school, students can tackle high-quality applied problems with the goal of university entrance exams, and also touch on more advanced topics. The problems are arranged to allow students to step up from learning basic knowledge to aiming for difficult universities such as the GMARCH level to the Waseda, Keio, and former Imperial University challenge levels. Focus on efficiency for the basics, with a focus on practice To secure time for applied problems, the pages are designed to allow for the efficient acquisition of new learning items in the shortest possible time. Even students who have mastered the content learned up to junior high school and have excellent comprehension will not be bored, and it is a text that allows them to aim higher. [Mathematics] Acquire the basics as quickly as possible and handle advanced topics "Basic Items" are summarized concisely, and the goal is to acquire the basics as quickly as possible through "Examples," "Similar Problems," and "Practice Problems." With "Applied Problems" that reflect the trends of entrance exams, we will improve awareness of top schools and problem-solving skills from an early stage. [Mathematics] University Entrance Exam Science Mathematics Focuses on practice exercises for entrance exam preparation for difficult schools, covering up to Mathematics III. In "Standard Entrance Exam Exercises," students will tackle problems they want to score reliably. In "Advanced Entrance Exam Exercises," students will tackle problems that require unique ingenuity specific to difficult schools.