Short Practical Rules for Commercial Calculations: Including Division Simplified and Abbreviated, and Short Methods for Multiplication: Original and Ingenious Methods in Cancellation, the Rule of Three, Percentage, Interest and Discount, and a Simple Method for Averaging Accounts. To which is Added an Exposition of Profit and Loss, Division Into Proportional Parts, Partnership and Bankruptcy, a Simple Method for Addition, and Practical Hints for Builders, Etc

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Weed, Parsons and Company, 1891 - Arithmetic - 175 pages

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Division Simplified
Remarks on Rule Il
Hints for the Student 4751

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