# 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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### Contents

 Section 1 5 Section 2 7 Section 3 23 Section 4 35 Section 5 47 Section 6 61 Section 7 63 Section 8 67
 Section 15 125 Section 16 131 Section 17 141 Section 18 143 Section 19 158 Section 20 162 Section 21 175 Section 22 179

 Section 9 71 Section 10 73 Section 11 87 Section 12 104 Section 13 119 Section 14 122
 Section 23 182 Section 24 185 Section 25 187 Section 26 193 Section 27 198

### Popular passages

Page 6 - 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 72 - Then multiply the second and third terms together, and divide the product by the first term: the quotient will be the fourth term, or answer.
Page 110 - 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 172 - 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 138 - 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 97 - 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 160 - 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 155 - Subtract the square number from the left hand period, and to the remainder bring down the next period for a dividend.
Page 129 - 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 130 - 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.