1 item foundYou searched for: Date: 1850s✖Place: [blank]✖Subject: Other✖Subject: Mathematics✖Type: Publication✖Type: Book✖This SiteAll Sites TableGridIndex CatalogCollectionCreatorDateIdentifierObject IDPlacePublisherSubjectTitleTypemodified date 102550100200 AllWith Images Refine Your SearchRefine Your SearchSubjectOther✖ArithmeticMathematics✖TextbookTypePublication✖Book✖Placenone✖Date1850s✖ Item 13852 A Key to the National Arithmetic Exhibiting the Operation of the More Difficult Questions in that Work: For the Use of Teachers Only