# American Common-school Arithmetic ...

Tappan, Whittemore & Mason, 1849

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### Περιεχόμενα

 Interest Mental Exercise 129 Partial Payments Common Rule 136 Bank Exchange 146 Exchange of Currencies 152 Miscellaneous Examples in Percentage 158 Accounts Current and Interest 163 Ratio PRoPortion 168
 PRoblems IN MENSURA 233 The Wheel and Axle 240 The Inclined Plane 242 BookKEEPING 253 Business Forms 259 259 For Suggestions to the Teacher see page 263

### Δημοφιλή αποσπάσματα

Σελίδα 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.
Σελίδα 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.
Σελίδα 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...
Σελίδα 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.
Σελίδα 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.
Σελίδα 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.
Σελίδα 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.
Σελίδα 45 - ... as many decimal places in the quotient as there are units in the remainder thus found.
Σελίδα 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.
Σελίδα 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.