Daboll's Schoolmaster's Assistant: Improved and Enlarged. Being a Plain Practical System of Arithmetic: Adapted to the United States

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Printed and published E. & E. Hosford, 1817 - 240 頁
 

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第 2 頁 - District, has deposited in this office the title of a book, the right whereof he claims as proprietor, in the words following, to wit : " THE CHILD'S BOTANY," In conformity to the act of the Congress of the United States, entitled, " An act for the encouragement of learning by securing the copies of maps, charts, and books to the authors and proprietors of such copies, during the times therein mentioned...
第 172 頁 - Compute the interest to the time of the first payment ; if that be one year or more from the time the interest commenced, add it to the principal, and deduct the payment from the sum total. If there be after payments made, compute the interest on the balance due, to the next payment, and then deduct the payment as above ; and in like manner from one payment to another till ail the payments are absorbed; provided the time between one payment and another be one year or more.
第 188 頁 - IS the method of finding what quantity of e'ach of the ingredients, whose rates are given, will compose a mixture of a given rate; so that it is the reverse of alligation medial, and may be proved by it.
第 21 頁 - TABLE. 10 Mills (m.) = 1 Cent . . ct. 10 Cents = 1 Dime . . d. 10 Dimes = 1 Dollar . $. 10 Dollars = 1 Eagle . E.
第 237 頁 - I nominate, constitute, and appoint sole executrix of this my last will and testament, hereby revoking all other and former wills by me at any time heretofore made.
第 172 頁 - But if any payment be made before one year's interest hath accrued, then compute the interest on t!<e principal sura due on the obligation for one year, add it to the principal, and compute the interest on the sum paid, from the time it was paid, up to the end of the year ; add it to the sum paid, and deduct that sum from the principal and interest added as above...
第 218 頁 - To measure a parallelogram, or long square. RULE. Multiply the length by the breadth, and the product will be the area, or superficial content.
第 181 頁 - Subtract the cube thus found, from the said period, and to the remainder bring down the next period, and call this the dividend.
第 156 頁 - Multiply all the numerators together for a new numerator, and all the denominators for a new denominator; and they will form the fraction required.
第 199 頁 - EXAMPLES. 1. A schoolmaster being asked how many scholars he had, said, If I had as many more as I now have, half as many, one-third...

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