【Overview of the Textbook】 This text is a mathematics textbook for junior high school students in their third year, specializing in calculations involving numbers and expressions. 【Features of the Content】 Problems and their solutions are explained in detail, with plenty of practice exercises to deepen understanding. 【Learning Outcomes】 By using this textbook, you can firmly establish a foundation in mathematics and prepare for exams. There are no markings or writings. There is also an English version. If you purchase both together, they are 1500 yen. Thank you.