# The Principles and Practice of Arithmetic: Comprising the Nature and Use of Logarithms, with the Computations Employed by Artificers, Gagers and Land-surveyors. Designed for the Use of Students

J.W. Parker, 1840 - 224 σελίδες

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### Περιεχόμενα

 DEFINITIONS 1 Numeration 7 Multiplication 15 Division 23 CHAPTER II 32 Compound Subtraction 39 CHAPTER III 47 CHAPTER IV 54
 Proportion 105 Interest Stocks c 114 Discount or Rebate 124 The Doctrine of Exchanges 131 CHAPTER VII 140 Extraction of the Cube Root 148 The Nature and Properties of Logarithms 155 CHAPTER IX 170

 Addition of Fractions 64 Reduction of Fractions 70 Rules of Practice 76 CHAPTER V 85 Multiplication of Decimals 91 Recurring Decimals 97
 The Theory of Solid or Cubic Measure 177 The Practice of Solid Measure 184 The Computations of Gagers 191 The Calendar 200 APPENDIX 211 Involution and Evolution 221

### Δημοφιλή αποσπάσματα

Σελίδα 52 - If the numerator and denominator of each fraction is multiplied (or divided) by the same number, the value of the fraction will not change.
Σελίδα xiv - Digits, which have their names respectively annexed: 1, 2, 3, 4, 5, 6, 7, 8, 9, 0: one, two, three, four, five, six, seven, eight, nine, zero...
Σελίδα xi - COUNTING. 12 units or things make 1 dozen. 12 dozen " 1 gross. 12 gross " 1 great gross. 20 units
Σελίδα 135 - A and B can do a piece of work in 10 days, A and C in 12 days, and B and C in 14 days ; in what time can they do it jointly and separately?
Σελίδα 6 - Set down the multiplicand, and under it the multiplier, in such a manner, th.at units may stand under units, tens under tens, hundreds under hundreds, and so on.
Σελίδα 95 - ... a number consisting of as many nines as there are recurring figures followed by as many ciphers as there are non-recurring figures.
Σελίδα 106 - If 3 men can do a piece of work in 12 days, how many days will it take 9 men to do the same ? ANALYSIS.
Σελίδα 109 - If 20 men can perform a piece of work in 12 days, how many men will accomplish three times as much in one-fifth of the time ? Ans.
Σελίδα 135 - A and B together can build a boat in 18 days, and •with the assistance of C they can do it in 11 days ; in what time would C do it alone ? Ans.
Σελίδα 77 - How many were therein the army? — how many killed ? — how many taken prisoners ? A. 2,400 ; 800 killed ; 600 prisoners. 48. A can do a job of work in 5 days, B in 6, and C in 7 ; how much can they jointly do in 2 days 1 A.