200 carefully selected questions. Detailed explanations and video explanations are also available with one click →
note.com/kantaro1966/n/n60a2dcf52505
"Train your math brain with junior high school knowledge! Cultivate logical thinking with eight approaches" amzn.to/2UJxzwq
Bluebacks "University Entrance Exam Math 100 Timeless Questions: A "Test of Math Skills" for Adults" amzn.to/2Q7bUvU
This book will teach you 90% of the basics of high school math: "Understand Euler's Formula with Junior High School Knowledge" amzn.to/2t28U8C
Euler's official T-shirt, the password is "Kantaro". www.ttrinity.jp/p/248613/

Contact information Job requests Inquiries →
kantaro@momo.so-net.ne.jp

Twitter twitter.com/Kantaro196611

Recommended video
A beautiful Tokyo University repeater and a Waseda dropout who are socially inept humanities students talk seriously about e, the base of natural logarithms, and Napier's number    • 自然対数の底e ネイピア数を東大留年美女＆早稲田中退の社会不適合文系コンビ...  
#shogi puzzles #shogi #FujiiSouta