■ Published by Noken Center, July 10, 2018 ☆ 6th Grade Elementary School ☆ Summer Textbooks ☆ Math, Japanese, 3-book set. ▶ Includes 3 answer keys/explanations. ▼ Almost unused. I think they are relatively clean, but there may be scratches on the covers due to home storage. I erased the names as much as possible with an eraser. ※ I apologize if I missed anything. (Bonus: Preparation for Junior High School Mathematics) No writing, with answer key. ♥ How about for home study or for children considering entering a cram school? ♡ Thank you for your consideration.