Tokaido Wasan Dochu Ki

[Machine Translation] By the middle of the Edo period, the Tokaido Highway was well maintained, various guides were available, and people could travel in relative safety. Daily mathematics was already widespread among the common people. This book is set in the setting of three childhood friends traveling together, introducing people and special notes along the way, and includes a picture map in the upper part of the book where they head for Kyoto, asking and answering questions about Japanese mathematics based on the hints they obtained, so it is fun to contrast them with the text.

東海道は、江戸中期には、道も整備され、各種案内書も出ており、人の往来も多く、比較的安全に旅ができていた。すでに、庶民の間でも日用数学が普及していた。本書は、幼馴染の三人が旅をする設定で、道中での人や特筆事項を紹介しながら、得たヒントから和算問答をしながら京へ向かう上段に絵地図を載せているので、文と対比してみるのも楽しい。