# A Treatise on Arithmetic: Designed Particularly as a Text for Classes in which the Principles of the Science are Inductively Developed ...

Packard & Butler, 1830 - 288 σελίδες

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### Περιεχόμενα

 INTRODUCTORY EXERCISES 1 Multiplication 11 Division 19 Numeration Table 30 The Roman Notation 36 Written Addition 50 Multiplication Table 57 Written Multiplication when the multiplier is under 65
 COMPOUND NUMBERSAddition 128 Division 134 Origin of weights and the balance 136 RULE OF THREE by Analysis 145 Divisiona Fraction by a Fraction 163 219 164 DECIMALSgeneral principles 174 220 179

 To multiply in any case 72 Dry Measure 78 ABBREVIATED MULTIPLICATION 84 Written Subtraction 94 Written Division 103 Fractions instances of Division 109 Proof of Division 115 Solid or Cubic Measure 121 218 126
 Contraction in Multiplication 181 Contraction in Division 194 222 195 FOREIGN COINS 201 INSURANCE AND COMMISSION 209 TIME RATE and int given to find PRIN 225 EXTRACTION OF THE SQUARE ROOT 257 ANNUITIESat simple interest 276 Combination lotteries 282

### Δημοφιλή αποσπάσματα

Σελίδα 75 - Britain. 4 farthings (qr, or far.) make 1 penny, marked d. 12 pence " 1 shilling, " s. 20 shillings " 1 pound, or sovereign, £. 21 shillings " 1 guinea. OBS. 1. It is customary, at the present day, to express farthings in fractions of a penny. Thus, 1 qr. is written ;<!;•_
Σελίδα 46 - January 31, February 28, March 31, April 30, May 31, June 30, July 31, August 31, September 30, October 31, November 30, December 31.
Σελίδα 77 - Weight is used by apothecaries and physicians in compounding dry medicines. TABLE. 20 Grains (gr.} = 1 Scruple, . . sc., or 3. 3 Scruples = 1 Dram, . . dr., or 3 . 8 Drams = 1 Ounce, . . oz., or § . 12 Ounces = 1 Pound, . . Ib., or ft,.
Σελίδα 272 - ... and to the remainder bring down the next period for a dividend. 3. Place the double of the root already found, on the left hand of the dividend for a divisor. 4. Seek how often the divisor is contained...
Σελίδα 58 - What is 1 ninth of 1 ? of 2? of 3 ? of 4 ? of 5 ? of 6 ? of 7 ? of 8? of 9 ? of 10 ? of- 11?
Σελίδα 77 - TROY WEIGHT. 24 grains gr. make 1 pennyweight, dwt. 20 pennyweights " 1 ounce. oz. 12 ounces " 1 pound. Ib. Table IV. — AVOIRDUPOIS WEIGHT 16 drams dr. make 1 ounce. oz. 16 ounces " 1 pound. Ib. "I"""" " 4 quarters make 1 hundred weight.