Junior Math Olympiad problem and answer set for elementary school students, distributed by Photon Arithmetic Club. Some pages have writing from when the problems were solved, so I'm offering it at a lower price. It shouldn't interfere with solving the problems, but please refrain from bidding if you are concerned. - Title: Junior Math Olympiad Trial Final Selected Problem Collection - Type: Study guide - Target age: Elementary school students - Contents: Math problem collection - Number of pages: 4 books total - Publisher: Photon - Language: Japanese - Format: Booklet Thank you for looking.