This is a set of Hishigakuen Basic Calculation Problem Sets, Volumes 1-3, and the answer key. ⚠️ Volume 1 is missing pages 1-4, starting from page 5. Also, it was used by copying, so the glue is loose. Page numbers have been marked with a highlighter as a reference for copying. ※ Although there are no entries, please forgive any oversight. ※ The name on the back cover will be cut off before shipping. ※ These are used items, so please understand that there may be stains, scratches, and minor oversights. Please purchase only if you understand that these are used items. ※ Please note that all sales are final (NCNR). ⚫︎ Returns, exchanges, and cancellations are not accepted, so please check the images and consider carefully before purchasing. ⚫︎ Shipping will only be done on weekdays. Thank you for viewing.