# The Teachers' Assistant: Or, A System of Practical Arithmetic ...

M'Carty & Davis., 1831 - 198

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### Spis treści

 NUMERATION 7 Federal Money 22 Compound Addition 42 Compound Multiplication 55 The Single Rule of Three 72 Tare and Tret 95 Insurance Commission and Brokage 199 109
 Involution 155 A general rule for extracting the roots of 162 Position 168 Geometrical Progression 174 Annuities at Compound Interest 181 Perpetuities 187 Duodecimals 193

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Strona 2 - 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.
Strona 172 - Divide the difference of the extremes by the number of terms, less 1, and the quotient will be the common difference.
Strona 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.
Strona 2 - Co. of the said district, have deposited in this office the title of a book, the right whereof they claim as proprietors, in the words following, to wit : " Tadeuskund, the Last King of the Lenape.
Strona 37 - And every other thirty-one, Except the second month alone, Which has but twenty-eight in fine, Till leap year gives it twenty-nine.
Strona 142 - 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.
Strona 132 - 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.
Strona 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.
Strona 190 - Feet multiplied by feet, give feet. Feet multiplied by inches, give inches. Feet multiplied by seconds, give seconds. Inches multiplied by inches, give seconds. Inches multiplied by seconds, give thirds. Seconds multiplied by seconds, give fourths.
Strona 129 - The number above the line is called the numerator, and that below the line the denominator. The denominator...