This is the educational material used in Kumon. It consists of 150 sheets from 7A1a to 7A160a, totaling 320 pages. Some pages have been marked with circles, flower marks, 100-point scores, or stickers by the teacher's red pen. Most of the prints are blank. There are no tears, but there is some wear and tear such as folds. Please understand that this is a used item before purchasing.