# Daboll's Schoolmaster's Assistant: Improved and Enl., Being a Plain Practical System of Arithmetic, Adapted to the United States. With the Addition of The Farmers' and Mechanics' Best Method of Book-keeping. Designed as a Companion to Daboll's Arithmetic

Hastings & Tracy, 1830 - Arithmetic - 247 pages

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### Contents

 ADDITION Simple Page 17 189 34 Questions for Exercise Page 209 63 Rule of Three Direct do Inverse 100 95 Discount 138 Fellowship 144
 Fractions Vulgar and Decimal 74 155 Insurance 126 169 Inverse Proportion 3 67 178 Numeration 15 200 Rebate A short method of finding the of any 217 Tare and Trett 114 238

### Popular passages

Page 182 - Multiply the divisor, thus augmented, by the last figure of the root, and subtract the product from the dividend, and to the remainder bring down the next period for a new dividend.
Page 80 - ... from the right hand of the quotient, point off so many places for decimals, as the decimal places in the dividend exceed those in the divisor.
Page 178 - Find the greatest square number in the first, or left hand period, place the root of it at the right hand of the given number, (after the manner of a quotient in division) for the first figure of the root, and the square number, under the period, and subtract it therefrom, and to the remainder Living down the next period for a dividend.
Page 224 - RULE. Multiply the length by the breadth, and that product by the depth, divide the last product by 2150,425 the solid inches in a statute bushel, and the quotient will be ti»e answer. EXAMPLE. There is a square...
Page 236 - CD &c. [Here insert the condition.] then this obligation to be void and of none effect ; otherwise to remain in full force and virtue.
Page 156 - RULE. Multiply all the numerators together for a new numerator, and all the denominators for a new denominator: then reduce the new fraction to its lowest terms.
Page 155 - To reduce a mixed number to its equivalent improper fraction. RULE. — Multiply the whole number...
Page 214 - Multiply the shillings in the principal by the number of days, and divide the product by 36, the quotient will be the interest in mills, for the given time, nearly, omitting fractions'.
Page 138 - JLs a rule by which merchants and traders discover their profit or loss in buying and selling their goods : it also instructs them how to rise or fall in the price of their goods, so as to gain or lose so much per cent, or otherwise.
Page 115 - Tare. 1. Find the tare, which subtract from the gross, and call the remainder suttle. 2. Divide the suttle by 26, and the quotient will be the trett, which subtract from the suttle, and the remainder will be the neat weight EXAMPLES.