Conquering Junior High School Entrance Exams with Manga! ① Tsurukamezan (Crane and Turtle Problems) ② Figures ③ Work Problems Yuyu Arithmetic Adventure Series ④ Conquer Figure Problems! Arithmetic with Manga Series ⑤ Tsurukamezan (Crane and Turtle Problems) I read these when I was in elementary school. They were easy to read because they're manga. There is no writing inside, but each book has some stains, wear, and folds. These books cost about 5000 yen in total. Sold as a set, please.