Z-kai Elementary School Student's Thinking Skills Expansion Workbook: Introductory Edition Z-kai Editorial Department For 1st to 3rd graders There are 50 problems. Problems 1-18 have been completed (used), but there are many remaining, so I would like to pass it on to someone who can use it. List price: ¥1000 *The shipping method may change from RakuRaku Mercari便 to YuYu Mercari便. I would be happy if someone who understands that this is a used item, stored at home, and agrees with the above content would purchase it. Thank you for looking. #ZkaiEditorialDepartment #Book #Society/Education/Learning