| Title: | The geometrical bird method in mental multiplication : the inverted pyramid process in written multiplication |
| Author: | Goodhue, Stephen W. |
| Note: | [Printed by H.H. Hoffmann], 1885 |
| Link: | page images at HathiTrust |
| No stable link: | This is an uncurated book entry from our extended bookshelves, readable online now but without a stable link here. You should not bookmark this page, but you can request that we add this book to our curated collection, which has stable links. |
| Subject: | Multiplication |
| Subject: | Multiplication (Arithmétique) |
| Other copies: | Look for editions of this book at your library, or elsewhere. |
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