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" TROY WEIGHT. 24 grains (gr.) = 1 pennyweight (pwt.). 20 pennyweights = 1 ounce (oz.). 12 ounces = 1 pound (lb.). 351. Apothecaries' weight is used in mixing medicines and in selling them at retail. APOTHECARIES "
The Child's Arithmetic ... - Page 134
by Ingram Cobbin - 1830
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Introduction to the National Arithmetic on the Inductive System: Combining ...

Benjamin Greenleaf - Arithmetic - 1871 - 350 pages
...13990far. ? TROY WEIGHT. 87. Troy Weight is the weight used in weighing gold, silver, and jewels. TABLE. 24 Grains (gr.) make 1 Pennyweight, pwt. 20 Pennyweights " 1 Ounce, oz. 12 Ounces " 1 Pound, Ib. 86. How do yon reduce farthings to pence 1 Why divide by 4 ? How do you reduce pence to shillings ?...
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An Elementary Arithmetic

Daniel Barnard Hagar - Arithmetic - 1871 - 220 pages
...silver and gems. The units are a grain, a pennyweight, an ounce and a pound. TABLE. £4 grains (gr.) are 1 pennyweight .... pwt. 20 pennyweights " 1 ounce oz. 12 ounces ' ' 1 pound Ib. 1ib. = 12 oz. = 240 pwt. = 5760 gr. A Pound Avoirdupois is equal to 7000 Troy grains. 310. Apothecaries,...
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A Practical Arithmetic: Upon the Basis of the Works of Geo. R. Perkins

George Payn Quackenbos - Arithmetic - 1872 - 350 pages
...used in weighing gold, silver, coins, and precious stones ; also in philosophical experiments. TABLE. 24 grains (gr.) make 1 pennyweight, . . pwt. 20 pennyweights,...ounce, . . . . oz. 12 ounces, 1 pound, . . . . Ib. pwt. gr. 1 = 24 lb. 1 = 20 = 480 1 = 12 = 240 = 5760 The Troy pound is the standard unit of weight...
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New Elementary Arithmetic, Embracing Mental and Written Exercises, for ...

Henry Bartlett Maglathlin - 1872 - 220 pages
...weight ? TROY WEIGHT. 84. Troy Weight is used for gold, silver, and jewels. Table. 24 grains (gr.) are 1 pennyweight, pwt. 20 pennyweights, 1 ounce, oz. 12 ounces, 1 pound, Ib. APOTHECARIES, in mixing medicines, use the pound, ounce (i), and grain, of this weight; but divide...
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New Practical Arithmetic: In which the Science and Its Applications are ...

Henry Bartlett Maglathlin - 1872 - 338 pages
...203. Troy Weight is used for weighing gold, silver, and jewels. «•*. Tal'le. 24 grains (gr.) are 1 pennyweight, pwt. 20 pennyweights, 1 ounce, oz. 12 ounces, 1 pound, Ib. What is Measure? A Line? A Surface? A Solid, Body or Volume? Weight? A Unit of Measure? The Common...
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New Rudiments of Arithmetic: Combining Mental and Slate Exercises for ...

James Bates Thomson - Arithmetic - 1872 - 234 pages
...15. What are the denominations ? Pounds, ounces, pennyweights, and grains. TABLE. 24 grains (gr.) are 1 pennyweight, pwt. 20 pennyweights " 1 ounce, oz. 12 ounces " 1 pound, lb. NOTE.—The best method of imparting to children a correct idea of Weights and Measures, is to...
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New Practical Arithmetic: In which the Science and Its Applications are ...

Henry Bartlett Maglathlin - Arithmetic - 1873 - 362 pages
...WEIGHT. 203. Troy Weight is used for weighing gold, silver, and jewels. Ta/ble. 24 grains (gr.) are 1 pennyweight, pwt. 20 pennyweights, 1 ounce, oz. 12 ounces, 1 pound, Ib. What is Measure ? A Line ? A Surface ? A Solid, Body or Volume? "Weight? A Unit of Measure? The Common...
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New Mental Arithmetic, for Primary Departments ...

James Bates Thomson - Arithmetic - 1873 - 158 pages
...What are the denominations ? Ans. Pounds, ounces, pennyweights, and grains. TABLE. 24 grains (gr.) are 1 pennyweight, pwt. 20 pennyweights '•" 1 ounce, oz. 12 ounces " 1 pound, lb. NOTE. — The best method of imparting to children a correct idea of Weights and Measures, is to...
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A Higher Arithmetic

George Payn Quackenbos - Arithmetic - 1874 - 444 pages
...silver, coins, and precious stones (diamonds excepted); also, in philosophical experiments. TABLE. 24 grains (gr.) make 1 pennyweight, . . pwt. 20 pennyweights,...1 ounce, .... oz. 12 ounces, 1 pound, . . . . Ib. Construct from the above, and memorize, a Table of equivalents (Art. 312). The United States standard...
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The Complete Arithmetic: Oral and Written, Volume 1

Daniel W. Fish - Arithmetic - 1874 - 296 pages
...gold, silver, and jewels, and in philosophical experiments. TABLE. ß. oz. pwt. ffr. 24 Grains (gr.) = 1 Pennyweight. pwt. 20 Pennyweights = 1 Ounce . . . oz. 12 Ounces = 1 Pound . , . Ib. 1 = 12 = 240 = 5760 1 = 20 = 480 1 = 24 A Carat is a weight of about 3.2 Troy grains, and is used to...
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