For Reiwa 6 (2024) ▪️Mathematics: Organization and Research ▪️Mathematics: Seiken Note, 2-book set Includes answer key and explanations • The "Mathematics: Organization and Research" textbook has some markings with a yellow highlighter. Please check the photos. • The "Organization and Research Note" has writing in it. Total 168 pages (pages 2-73 have writing as shown in the photos.) The name has been written on this and erased with a marker. • The name has also been written on the answer key and erased with white-out. • Study is also possible using smartphones and tablets. This is a used item that was used by a child. We ask for your understanding of its used condition before purchasing. If items can be bundled with other items I have listed, I will offer a discount equivalent to the shipping cost. For regular test preparation!! (Internal grades are important for high school entrance exams) For keeping at home to leave books behind! For those who have lost theirs!! How about these? Mathematics: Organization and Research List price: 1200 yen Publisher: Akatsuki Education Books Co., Ltd. Mathematics: Seiken Note List price: 340 yen Publisher: Akatsuki Education Books Co., Ltd.