# Introduction to the National Arithmetic: On the Inductive System : Combining the Analytic and Synthetic Methods with the Cancelling System ... : Designed for Common Schools

Robert S. Davis, and Gould, Kendall, & Lincoln, 1846 - 196 σελίδες

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### Περιεχόμενα

 Numeration 8 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
 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 Discount 131

 Compound Addition 48 Compound Subtraction 51 Exercises in Compound Addition and Subtraction 53 Reduction 57 Reduction Descending 58 Reduction Ascending 60 Miscellaneous 61 Compound Multiplication 17 Compound Division 65 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 Division of Decimals 113
 Compound Interest 132 Equation of Payments 136 Proportion 139 Compound Proportion 143 Company Business 145 Double Fellowship 147 Duodecimals 149 Involution 150 Evolution or the Extraction of Roots 151 Extraction of the Cube Root 156 Geometrical Problems 161 Miscellaneous Questions APPENDIX Cancelling Method SUPPLEMENT 27 35 36 167 42 168 56 169 67 170 114 171 117 179 129 184 130 190 146 148 150 151 191 173 194

### Δημοφιλή αποσπάσματα

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 135 - ... what is the equated time of payment ? Ans. 8mo. 22^fda. 4. A owes B \$600 ; one-third is to be paid in 6 months, one- fourth in 8 months, and the remainder in 12 months : what is the mean time of payment ? Ans.
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 135 - ... 8 months ; what is the equated time for the payment of the whole ? Ans.
Σελίδα 80 - To reduce a mixed number to an improper fraction, Multiply the whole number by the denominator of the fraction, and to the product add the numerator; under this sum write the denominator.
Σελίδα 156 - CUBE is any number multiplied by its square. To extract the cube root, is to find a number which, being multiplied into its square, shall produce the given number. RULE.
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.
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 86 - Or, multiply each numerator into all the denominators except its own for a new numerator ; and all the denominators into each other for a common denominator.