This is a high school entrance exam regular test preparation textbook from Bun'eido Publishing, "Middle School 1 Highest Level Problem Collection: Mathematics." It includes answers and explanations. This item has some wear, but it is new, unused, and in good condition. Although it is not the latest edition, the content of the textbook is almost the same every year. You are welcome to purchase this item immediately. Please consider that this is a used item that has been handled by another person. Please refrain from asking questions about the product or requesting a price reduction after purchase. We cannot accept cancellations, complaints, returns, or refunds after purchase.