One Rank Up Arithmetic "Grade 6 Standard Problem Collection: Reading Comprehension" Shogaku Kyoiku Kenkyukai / Shogaku Kyoiku Kenkyukai Price: ¥1050 Junior High School Entrance Exam Difficult School Free Study Problem Collection Price: ¥1550 The answers have been removed to be used without looking at them during the 6th grade, but they are all included. This is a problem collection that will be helpful! I will sell it to someone who understands. Thank you.