Original Problem Set: Thoroughly Analyzed Elementary School Entrance Exam Questions - Title: Original Problem Set - Content: Problem set based on a thorough analysis of elementary school entrance exam questions - Target Audience: For elementary school entrance exam preparation - Special Notes: Exclusive product of Shingakai I have been using copies, so this problem set is in good condition as I didn't use it regularly. The answer key has been cut where it was stapled. I carefully removed the staples and cut the center with a cutter. I have uploaded photos of the cut surfaces. (This is recommended for those who want to copy or scan, as it takes a considerable amount of time to copy the booklet as is.) Three file boxes are included. I plan to wrap each file box in waterproof vinyl for shipping. Shingakai has thoroughly analyzed elementary school entrance exam materials collected over many years and edited them to be useful for the actual tests. There are 63 books for each subject, covering a wide range of content from basic to advanced, with 20 questions in each book. You can build a balanced skill set and develop the ability to handle a variety of problems. This product is exclusively sold at Shingakai classrooms and Shingakai'S Club schools. It is not available on online shopping sites or in bookstores. Thank you for viewing.