算数はむずかしくない
Subtitle: wakariyasui suidō hōshiki no oshiekata
By: Matsui Mikio
Series: Jippi shinsho -- C-35
Publisher: Jitsugyō no Nihonsha
Published: 1975
Place of publication: Tōkyō
Language: jpn
Number of pages: 230
Subjects: Mathematics
Other titles: Sansū wa muzukashiku nai