This is a middle school (Grade 8) math problem book, characterized by a wealth of problems and explanations. ※Attention⚠️ There are about a dozen pages with some problems already solved, as shown in the second and third photos (some pages are almost entirely solved). Therefore, I will erase the answers if they are light. For those who want to try it, even if you're unsure if you'll continue! - Title: Middle School Math Problem Book (Grade 8) - Publisher: Gakken - Contents: Math problem book, with answers - Step: Step 2 - Number of pages: [Unspecified] - Features: Various problem formats, with explanations Thank you for viewing.