A key to the commercial arithmetic

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Page 296 - To multiply a decimal by 10, 100, 1000, &c., remove the decimal point as many places to the right as there are ciphers in the multiplier ; and if there be not places enough in the number, annex ciphers.
Page 286 - Division is the process of finding how many times one number is contained in another. The Dividend is the number divided.

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