# American Common-school Arithmetic ...

Tappan, Whittemore & Mason, 1849 - Arithmetic - 264 pages

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### Contents

 To find the Time between two Different 81 Multiple Common Multiple Least 87 Mental Exercises in Multiplying 93 Relations of Numbers Compound 99 Subtraction of Common Fractions 105 Questions for Examination 113 Practice Table 119 Stocks 125
 Proportion by Cause and Effect 176 Section XIX Solids 184 Duodec1MALs 190 Questions for Review 197 Annuities at Simple Interest 205 SURFACEs 211 Triangles Irregular Polygons 217 Questions for Review 223

 To find the interest on pounds shil 132 Compound Interest 138 Bank Exchange 146 Exchange of Currencies 152 Miscellaneous Examples in Percentage 158 Ratio Proportion 168
 PRoblems IN MENSURA 233 The Wheel and Axle 240 For the Slate 247 BookKEEPING 253 Business Forms 259 259

### Popular passages

Page 214 - 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 73 - 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 91 - 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 87 - 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 93 - 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 199 - 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 203 - 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 196 - 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.