The teacher's assistant: or, A system of practical arithmetic: wherein the several rules of that useful science are illustrated by a variety of examples, a large proportion of which are in Federal money : the whole designed to abridge the labour of teachers, and to facilitate the instruction of youth
Pub. and sold by McCarty & Davis, 1831 - Arithmetic - 198 pages
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15 yards 2qrs 3qrs acres aliquot amount annuity annum Bought Bring bushels bushels of wheat casks cent to cents cents per lb ciphers common difference compound interest contained cube root decimal dividend divisor dollars per cent dols drams DRY MEASURE English ells EXAMPLES Facit farthings Federal Money fourths furlongs gain gallons given number given sum grains half yearly hogsheads hundred weight improper fraction inches lowest terms merchant miles mixed number months Multiply nails neat weight number of terms Oqrs ounces paid pecks pence Pennsylvania currency penny pennyweights pieces pint pounds present worth principal PROOF quarters quarts quotient rate per cent Reduce f remainder roods Rule of Three shillings sold square root sterling Subtract sum or quantity tare TROY WEIGHT tuns VULGAR FRACTIONS whole number yards cost yards of cloth yards of linen yards of muslin
Page 8 - An Act supplementary to an Act, 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 time* therein mentioned," and extending the benefits thereof to the arts of designing, engraving, and etching historical and other prints.
Page 112 - Discdunt is an allowance made for the payment of a sum of money before it becomes due, according to a certain rate per cent, agreed on between the parties concerned. The present worth of any...
Page 174 - Multiply the last term by the ratio, from the product subtract the first term, and divide the remainder by ratio less one for the sum of the series.
Page 140 - MULTIPLICATION OF VULGAR FRACTIONS GENERAL RULE. Reduce compound fractions to single ones, and mixed numbers to improper fractions; then multiply the numerators together for a new numerator, and the denominators for a new denominator.
Page 99 - RULE.* Multiply the principal by the 'rate per cent, and divide the product by 100: the quotient will be the interest for 1 year.
Page 162 - Bring down the first figure of the next period to the remainder for a new dividend, to which find a new divisor, and so on, till the whole be finished.
Page 157 - Subtract the square number from the left hand period, and to the remainder bring down the next period for a dividend.
Page 131 - 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.