Arithmetic & Social Studies, 5th Grade, Volume 2, A set of Yosyu Series and Exercise Problem Collection. I just purchased these from the official website. ▪︎ Yosyu Series Arithmetic 5th Grade, Volume 2, 2200 yen (tax included) ▪︎ Exercise Problem Collection Arithmetic 5th Grade, Volume 2, 1760 yen (tax included) ▪︎ Yosyu Series Social Studies 5th Grade, Volume 2, 2200 yen (tax included) ▪︎ Exercise Problem Collection Social Studies 5th Grade, Volume 2, 1980 yen (tax included) Total: 8140 yen All items are brand new, unused, and in very clean condition. I'm sorry, but I'm only selling them as a set, not individually.