Please understand that this is a used item before purchasing. I used this for studying, writing in the notebook, so there is almost no writing in the book itself. I erased some of the writing with an eraser. I didn't use the practice problems much, so there is almost no writing, but please forgive any oversights. "Middle School Entrance Exam Quick Math Skills: Patterns and Combinations" Hideshi Awane Price: ¥1400 #HideshiAwane #Hideshi_Awane #book #nature/mathematics