The tutor's assistant [electronic resource] : being a compendium of arithmetic; and a complete question-book. In five parts. Containing, I. Arithmetic in whole Numbers; being a brief Explanation of all its Rules, in a new and more concise Method than any hitherto published; with an Application to each Rule, consisting of a large Variety of Questions in real Business, with their Answers annexed. II. Vulgar Fractions, which are treated with a great deal of Plainness and Perspicuity. III. Decimals, with the Extraction of the Square, Cube, and Biquadrate Roots, after a very plain and familiar Manner, in which are set down Rules for the easy calculating of Interest, Annuities, and Pensions in Arrears, the present Worth of Annuities, &c. either by simple or Compound Interest. IV. Duodecimals or Multiplication of Feet and Inches, with Examples applied to measuring, and worked by Multiplication, Practice, and Decimals: To which is added, a Method of multiplying several Figures by several, and the Product to be produced in one Line only. V. A Collection of Questions set down promiscuously, for the greater Trial of the foregoing Rules. The whole being adapted either as a Question Book for the Use of Schools, or as a Remembrancer and Instructor to such as have some Knowledge therein. This Work having been perused by several Eminent Mathematicians and Accomptants, is recommended as the best Compendium hitherto published for the Use of Schools, as well as for Private Persons. The third edition, with several additions, particularly a New and very short Method of extracting the Cube Root. By Francis Walkingame, Writing-Master and Accomptant.