This is a problem set from a cram school. I bought it last year for high school entrance exams, but I only did 2-5 pages of the pre-check (like a mini problem set?), and the main book is unused. Would this be useful for exam preparation? I'll include the pre-check as a bonus if you'd like. - Title: Navista! NEXT - Subjects: Japanese, English, Social Studies, Science, Math