There are no writings, etc. (We have checked carefully, but there may be oversights. Please understand.) With explanations. There is a sun-faded area on the edges of the answers and explanations, but there is no problem with use. "Shingaku Juku Pro Koushi ga Oshieru Koukou Nyushi Suugaku Shunkei 60: Juku ga Kossori Oshieru, Arayuru Mondai wo Seikaku, Katsu Isshun de Toku Tame no, Kyuukyoku no Kaitou Tekunikku" (High School Entrance Exam Mathematics Instant Solution 60: The Ultimate Answer Techniques for Solving All Problems Accurately and Instantly, Secretly Taught by Cram School Instructors) Keiji Mori Price: ¥1580 #i (eye) - On sale with care! Click here for a list of products! #Keiji Mori #MathWorkbook #EntranceExam #Study