※Please read the profile first※ A set of arithmetic textbooks for 4th graders, published in January 2024, including a problem book and an explanation book. The Hamano Note (for No. 11-13) answer sheets are unused and will be included as a bonus. Roughly speaking, about one-third of the content has pencil markings (I haven't counted, so this is just my personal feeling). Please note that there may be some stains from storage. My child attended Hamagakuen, a major cram school for junior high school entrance exams in the Kansai region, in the fourth grade, but transferred to another school due to circumstances. My child liked Hamagakuen's classes, so it's a shame, but I no longer need these, so I'm selling them. - Title: Arithmetic Companion 4th Grade, Volume 1 - Published: January 2024 I will put them in a plastic bag and send them with simple packaging.