Textbook for learning the basics of mathematics. - Title: 3TRIAL Mathematics I + A - Publisher: Shinko Publishing - Price: 720 yen (excluding tax) - ISBN: 978-4-16-120557-2 - ISBN: 978-4-16-120531-2 There is some writing in it, and it shows some signs of use, but I think it can still be used. Please erase the name written on the back. Thank you for your understanding.