The American accountant; or, A complete system of practical arithmetic : Containing, I. Whole numbers, particularly adapted to the American and British commerce. II. Vulgar fractions; in which the rules are so simple and the contractions so obvious as to render the operations remarkable short and easy. III. Decimals, with concise methods of managing all kinds of simple and compound repetends; the extraction of roots: interest, annuities, &c. &c. IV. Duodecimals; or multiplication of feet and inches. V. Curious, useful and entertaining questions, with their solutions; &c. &c. : The whole calculated to ease the teacher and assist the pupil; it will be found likewise extremely useful to American merchants, &c. general rules and compact tables being given to change the currencies, Sterling, French and Dutch monies into each other. /