This is a set of workbooks and check-up tests. The answers to the workbooks are missing, so there are no answers. There are some writings in a few places, such as graphs and figures. The check-up tests are unused and have answers. Since these were used, there are stains and tears. Purchased in 2024. Juku-exclusive textbook, Keirinkan Publishing. This is a textbook that includes problem sets and tests to learn from the basics to the applications of arithmetic. - Title: Workbook Arithmetic Grade 4 - Grade: Elementary School 4th Grade - Table of Contents: Contents from the basics to the applications of arithmetic - Contents: Includes problem sets and tests Thank you for viewing.