1 option
Ars bene numerandi = or, A small tract of arithmetick : design'd for the use and benefit of tradesmen and young practitioners in that art : containing the practice thereof in whole numbers and fractions, both vulgar and decimal, and all those necessary and useful rules.
The Penn Libraries is committed to describing library materials using current, accurate, and responsible language. If you discover outdated or inaccurate language, please fill out this feedback form to report it and suggest alternative language.