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Elements of Arithmetic

by Augustus De Morgan

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  1. 1Preface
  2. 2Book I — Principles of Arithmetic — Section I — Numeration
  3. 3Section II — Addition and Subtraction
  4. 4Section III — Multiplication
  5. 5Section IV — Division
  6. 6Section V — Fractions
  7. 7Section VI — Decimal Fractions
  8. 8Section VII — On the Extraction of the Square Root
  9. 9Section VIII — On the Proportion of Numbers
  10. 10Section IX — On Permutations and Combinations
  11. 11Book II — Commercial Arithmetic — Section I — Weights, Measures, &c.
  12. 12Section II — Rule of Three
  13. 13Section III — Interest, etc.
  14. 14Appendix To — I — On the Mode of Computing
  15. 15Appendix II. — On Verification by Casting Out — Nines and Elevens
  16. 16Appendix III. — On Scales of Notation
  17. 17Appendix IV. — On the Definition of Fractions
  18. 18Appendix V — On Characteristics
  19. 19Appendix VI. — On Decimal Money
  20. 20Appendix VII. — On the Main Principle of Book-Keeping
  21. 21Appendix VIII. — On the Reduction of Fractions to Others of Nearly…
  22. 22Appendix IX. — On Some General Properties of Numbers
  23. 23Appendix X — On Combinations
  24. 24Appendix XI. — On Horner’s Method of Solving Equations
  25. 25Appendix XII. — Rules for the Application of Arithmetic to Geometry

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