# Introduction to The National Arithmetic: On the Inductive System; Combining the Analytic and Synthetic Methods

R.S. Davis, 1844 - 184 σελίδες

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### Περιεχόμενα

 Numeration 10 Addition 13 Subtraction 21 Multiplication 22 Division 31 Application of the preceding Rules 35 Tables of Money Weights and Measures 36 United States Money 43
 Division of Decimals 113 Reduction of Decimals 114 Exercises in Decimals 117 Simple Interest 119 Partial Payments 126 Commission and Brokerage 128 Insurance and Policies 129 Stocks 38 Banking 130

 Compound Addition 49 Compound Subtraction 51 Exercises in Compound Addition and Subtraction 53 Reduction 13 Reduction Descending 57 Reduction Ascending 60 Miscellaneous 61 Compound Multiplication 65 Compound Division 69 Bills 73 Fractions 84 Vulgar Fractions 89 Addition of Vulgar Fractions 92 Subtraction of Vulgar Fractions 94 Multiplication of Vulgar Fractions 98 Division of Vulgar Fractions 102 Exercises in Vulgar Fractions 106 Decimal Fractions 108 Addition of Decimals 109 Subtraction of Decimals 110 Multiplication of Decimals 111
 Discount 131 Compound Interest 133 Equation of Payments 135 Proportion 139 Compound Proportion 143 Company Business 145 Double Fellowship 147 Duodecimals 149 Involution 150 Evolution or the Extraction of Rootsi 151 Extraction of the Cube Root 156 Geometrical Problems 161 Miscellaneous Questions 27 35 167 42 168 56 169 67 170 74 171 76 172 98 182 165 184

### Δημοφιλή αποσπάσματα

Σελίδα 31 - Multiply the divisor, thus augmented, by the last figure of the root, and subtract the product from the dividend, and to the remainder bring down the next period for a new dividend.
Σελίδα 100 - Multiply the numerators together for a new numerator, and the denominators together for a new denominator.
Σελίδα 126 - COMPUTE the interest on the principal sum from the time when the interest commenced to the first time when a payment was made, which exceeds either alone or in conjunction with the preceding payments (if any) the interest at that time due : add that interest to the principal, and from...
Σελίδα 79 - To reduce a mixed number to an improper fraction. RULE. — Multiply the whole number by the denominator of...
Σελίδα 148 - Multiply each term in the multiplicand, beginning at the lowest, by the feet of the multiplier, and write each result under its respective term, observing to carry a unit for every 12 from each denomination to its next superior.
Σελίδα 135 - ... 8 months ; what is the equated time for the payment of the whole ? Ans.
Σελίδα 41 - Thirty days hath September, April, June, and November ; All the rest have thirty-one, Except the second month alone, Which has but twenty-eight, in fine, Till leap year gives it twenty-nine.
Σελίδα 89 - To find the value of a fraction in the known parts of the integer, as of coin, weight, measure, fyc.
Σελίδα 7 - Los números cardinales 0: zero 1: one 2: two 3: three 4: four 5: five 6: six 7: seven 8: eight 9: nine 10: ten 11: eleven 12: twelve 13: thirteen 14: fourteen 15: fifteen 16: sixteen 17: seventeen 18: eighteen 19: nineteen 20: twenty...
Σελίδα 41 - 1 Sign, ... " s. 12 Signs, or 360 Degrees, the whole great Circle of the Zodiac. 1. How many seconds in 2 minutes ? In 3 minutes ? In 4 minutes ? In 6 minutes ? 2. How many seconds in 3 minutes and 1 second ? 3.