I purchased this here and have read it once. It's a textbook for elementary school students to learn the basics of arithmetic, and it features easy-to-understand explanations. #ArithmeticTextbook #EikoSeminar #JuniorHighSchoolEntranceExam - Price: 1400 yen - Target Grade Level: Elementary school students - Content: Material for learning the basics of arithmetic - Additional Information: Includes easy-to-understand explanations Thank you for looking.