Doraemon's Multiplication and Division Sansu (Arithmetic) Interesting Conquest Learning Series Shogakukan Doraemon Exciting Secret Gadget Special Shogakukan Fun! The Mysteries of Arithmetic Why? How? 1st and 2nd Grade Supervised by Yoshikazu Yamamoto Takahashi Shoten Set of 3 books Bundle sale There is wear and tear on the corners and signs of use. Used item, stored at home. Thank you for your understanding. *ˊᵕˋ* Instant purchase OK!!