# Welch's Improved American Arithmetic, Adapted to the Currency of the United States: To which is Added a Concise Treatise on the Menstruation of Planes and Solids

Sanborn & Carter, 1847 - Arithmetic - 228 pages
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### Contents

 ΤΕΝ x THIRTYONE xvi THIRTYSEVEN xxii THIRTYEIGHT 10 99 12 Arithmetical Progression 19 99 47 Division of Decimals 57
 Single Fellowship 153 Single Position 164 Solid Measure 170 Globe 176 Standard of Foreign Gold 184 Wedge 199 111 206 89 212

 Multiplication of vulgar fractions 92 29 98 Reduction of Coins 105 Subtraction of Vulgar Fractions 114 Simple Interest 126 FORTY 128
 FORTYSEVEN 214 94 230 125 236 188 250 SIXTYNINE

### Popular passages

Page 81 - To reduce a mixed number to an improper fraction, — RULE : Multiply the whole number by the denominator of the fraction, to the product add the numerator, and write the result over the denominator.
Page 92 - Multiply the numerators together for a new numerator, and the denominators together for a new denominator.
Page 214 - Thirty days after sight of this first of exchange (second and third of the same tenor and date unpaid...
Page 92 - Reduce compound fractions to simple ones, and mixt numbers to improper fractions ; then multiply the numerators together for a new numerator, and the denominators for. a new denominator.
Page 109 - 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 equated time.* • , EXAMPLES.
Page 193 - RULE. — To the square of the bung diameter add the square of the head diameter ; multiply the sum by the length, and the product by .0014 for ale gallons, or by .0017 for wine gallons.
Page 176 - A sphere is a solid bounded by a curved surface, every point of which is equally distant from a point within called the center.
Page 128 - Separate the given number into periods of two figures each, beginning at the right hand: the period on the left will often contain but one figure.
Page 64 - 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 163 - As 7 is to 22, so is the diameter to the circumference : or, as 22 is to 7, so is the circumference to the diameter.