"Challenge Problems for Junior High School Entrance Exams: Arithmetic Calculation Problems" Absolute Pass Project Price: ¥950 This book is out of print. I think it's a problem set that can be used for only calculations, only figures, only saltwater solutions, etc., for areas you are not good at. [Condition] The answers are written on the 4 pages shown in the photos, but the rest have no answers written. The intermediate steps were written in pencil, so they have been erased with an eraser. The pressure of the writing remains, so if you are concerned, please make a copy and use it. #AbsolutePassProject #Book #Nature/Mathematics