Sinossi
Key to the Progressive practical arithmetic including analyses of the miscellaneous examples in the Progressive intellectual arithmetic. For teachers only. This book, "Key to the Progressive practical arithmetic", by Horatio Nelson Robinson, is a replication of a book originally published before 1870. It has been restored by human beings, page by page, so that you may enjoy it in a form as close to the original as possible.
Le informazioni nella sezione "Riassunto" possono far riferimento a edizioni diverse di questo titolo.
