A math problem book that corresponds to the new textbooks, with a free test paper system available. - Title: Math Problem Notebook 3 - Series: ABC Problem Book Series 2025 edition for teachers. Unused. Corresponds to the revised new textbooks for use from Reiwa 7th year (2025) to Reiwa 10th year (2028). *For teachers, the answers are printed in red in the answer section of the problem book. ・Book only. CDs and DVDs are not included. Thank you for viewing.