A Key to the Complete Practical Arithmetician: Containing Answers to All the Questions in That Work, with the Solutions at Full Length, Wherever There Is the Smallest Appearance of Labour or Difficulty; The Whole Interpersed with Several Useful Notes and
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A Key to the Complete Practical Arithmetician: Containing Answers to All the Questions in That Work, with the Solutions at Full Length, Wherever There Is the Smallest Appearance of Labour or Difficulty; The Whole Interpersed with Several Useful Notes and
