This is "Mathematics 1・A Basic Problem Handbook." The list price is 1100 yen. Markers have been used only on the parts shown in the image, and there is no writing inside (see the third image). Please refrain from purchasing if you have any concerns. Reference book, problem collection, book, high school, high school mathematics, mathematics, Japanese, chemistry, physics, biology, geography, social studies, English, university, university entrance exam, Obunsha