# American Common-school Arithmetic ...

Tappan, Whittemore & Mason, 1849 - Arithmetic
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### Contents

 SECTION I 9 Exercises in Reading Decimals 15 Mental Exercise in Addition 21 Exercises for the Slate in Multiplying 27 Definitions 39 General Rule for Division of Decimals 46 47 61 58 62
 Stocks 125 To find the interest on pounds shil 132 142 146 Equation of Payments 155 Miscellaneous Exercises in Fractions 168 Partnership 181 POWERS AND ROOTS 192 Questions for Review 198

 Avoirdupois Weight Long Measure 68 Miscellaneous Table 74 Addition of Compound Numbers 75 To find the Time between two Different 81 Multiple Common Multiple Least 87 Exercise for the Slate in Multiplying 93 Relations of Numbers 99 Subtraction of Common Fractions 105 95 105 102 105 Definitions 119
 DUODECIMALS 190 Boards and Timber 203 201 203 Annuities at Compound Interest 208 Mensuration of Surfaces 215 206 224 192 236 211 241 The Wedge The Screw 243 DayBook Ledger 253 Business Forms 259 247 265

### Popular passages

Page 170 - The circumference of every circle is supposed to be divided into 360 equal parts, called degrees ; each degree into 60 equal parts, called minutes ; and each minute into 60 equal parts, called seconds.
Page 61 - 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.
Page 9 - 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...
Page 75 - If the numerator and denominator of each fraction is multiplied (or divided) by the same number, the value of the fraction will not change.
Page 71 - The least common multiple of two or more numbers, is the least number that can be divided by each of them without a remainder.
Page 77 - To reduce a mixed number to an improper fraction, — RULE : Multiply the whole number by the denominator of the fraction, to the product add the numerator, and write the result over the denominator.
Page 163 - RULE. 1 . Separate the given number into periods of three figures each, by putting a point over the unit figure and every third figure bejond the place of units.
Page 45 - ... as many decimal places in the quotient as there are units in the remainder thus found.
Page 163 - I. The first term, common difference, and number of terms being given to find the last term, and sum of all the terms. RULE 1. — Multiply the number of terms, less one, by the common difference, and to that product, add the first term, the sum is the last term.
Page 160 - Multiply the divisor, thus increased, by the last figure of the root; subtract the product from the dividend, and to the remainder bring down the next period for a new dividend. 5. Double the whole root already found for a new divisor, and continue the operation as before, until all the periods are brought down. NOTE.