Problem set for thorough understanding in preparation for junior high school entrance exams. - Title: Top Class Problem Set Aiming for Junior High School Entrance Exams, Arithmetic Thorough Understanding Edition, Year 1 - Publisher: Morigami Education - Age/Grade: Year 1 - Features: Includes tests for improving academic ability - Contents: From Thorough Understanding Edition to Top Class Problem Set - Size: Pocketbook size I also have a Japanese language book for sale. All pages are in color and easy to understand. The answer key has some signs of use. I used it by making copies, so there are no markings. Thank you for looking!