This is the answer key for "Clear Mathematics Exercises I, II, A, B." Condition: Near Mint Shipping Method: Yuu Yuu Mercari Delivery Days until shipment: 4-7 days Immediate purchase is welcome. It has been stored in a dark place at home. There are no pets or smokers. Since it has been used very little, there are some surface scratches and creases, but it is in relatively good condition. I couldn't find any writing, as far as I looked. I apologize if I missed anything. Please understand this before purchasing. Please note that it is stored by an amateur, so there may be some yellowing or minor scratches. In that case, please understand. For shipping, I plan to wrap it in an OPP sheet to prevent water damage, put it in an envelope, and send it via Yuu Yuu Mercari Delivery. If you wish to change the shipping method, please consult with me in advance via comments. Please note that the price may be increased to cover the difference in shipping costs. Shipping will be done within 4-7 days after purchase. I try to ship as soon as possible, but it may be delayed. In that case, I will contact you, so please understand. #UniversityEntranceExam #RedBook #ExamStudy #PastQuestions #ProblemCollection #HighSchoolEntranceExam #Language #ReferenceBook #Mathematics #MathI #MathII #MathA #MathB