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### Contents

 41 15 Subtraction 21 Tables in Compound Addition 41 Problems resulting from the preceding Rules 58 Vulgar Fractions 68 Decimal Fractions 86 Decimal Tables 97 Reduction of Coins 110
 in Federal Money 264 Discount 271 Duties 277 Exchange 289 Discount by Compound Interest 308 Present Worth of Annuities at Compound Interest 315 Pur hasing Freehold Estates in Reversion 330 Expectation of Life at several ages 338

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Page 263 - If the payment exceeds the interest, the surplus goes towards discharging the principal, and the subsequent interest is to be computed on the balance of principal remaining due. If the payment be less than the interest, the surplus of interest must not be taken to augment the principal ; but interest continues on the former principal until the period when the payments, taken together, exceed the interest due, and then the surplus is to be applied towards discharging the principal, and interest is...
Page 349 - If the errors are alike, divide the difference of tire products by the difference of the errors, and the quotient will be the answer. 5. If the errors are unlike, divide the sum of the products by the sum of the errors, and the quotient will be the answer.
Page 191 - 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 199 - Find the first figure of the root by trial, and subtract its power from the" left hand period of the given number. 5. To the remainder bring down the first figure in the next period, and call it the dividend. 4. Involve the root to the next inferior power to that which is given, and multiply, it by the number denoting the given power, for a divisor.
Page 69 - Operations with Fractions A) To change a mixed number to an improper fraction, simply multiply the whole number by the denominator of the fraction and add the numerator.
Page 86 - ... 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 281 - RULE.* — Multiply each payment by the time at which it is due; then divide the sum of the products by the sum of the payments, and the quotient will be the true time required.
Page 262 - 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 all the payments are absorbed ; provided the time between one payment and another be one year or more.
Page 262 - ... then compute the interest on the principal sum 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.
Page 346 - RULE. 1. Take any number and perform the same operations with it as are described to be performed in the question. 2. Then say as the sum of the errors is to the giren sum, so is the supposed number to the true one required.