6 problem sets 2 answer keys This is the complete set. Used. For 4th to 6th grade. Approximately 1/3 to 1/4 remaining. About 50-60 pages have been detached. Some pages are starting to come loose from the main body. Originally designed to be easily detached, allowing one page to be worked on each day. While there are clean pages without writing, there are also red circles, scribbles, tears, and stains. They can be used if erased, but they will be provided as is. I couldn't include everything in the photos. I believe everything is included, but I haven't counted the pages, so please understand that there may be oversights. You will definitely develop strong calculation skills by solving these problems. They are not available in bookstores, so they are valuable. These are good calculation problems, and this is the limit of what I can offer. Keywords: Kigakuen Grade 6 Math Kigakuen Grade 5 Math Kigakuen Grade 4 Math Kigakuen Difficult Problems Kigakuen Difficult Calculation Problem Set Kigakuen Calculation Problem Set Kigakuen Math Junior High School Entrance Exam Problem Set Social Studies Grade 5 Elementary School Entrance Exam Textbooks Advancement School Textbooks Tetsuryokukai Junior High School Entrance Exam Math Nichinoken SAPIX Yotsuya Otsuka Super Elite Problem Set Junior High School Entrance Exam Most Difficult Junior High School Entrance Exam Nada See Japan and the World at a Glance with Maps Hamagakuen Highest Level Special Training Grade 5 Hamagakuen Saire (Highest Level) Hamagakuen Highest Level Special Training Difficult Junior High School Entrance Exam Kigakuen Social Studies Kigakuen Grade 4 Social Studies Kigakuen Grade 5 Social Studies Kigakuen Grade 6 Social Studies Kigakuen Highest Level Kigakuen Social Studies Special Training Japanese Geography Japanese History Hamagakuen Textbooks Shogakusha Shogakusha Shogakusha Textbooks Hamagakuen Public Test Those who are working hard on the Kigakuen Public Test