Practical and Mental Arithmetic: On a New Plan, in which Mental Arithmetic is Combined with the Use of the Slate ...with Exercises for the Slate...to which is Added, a Practical System of Book-keeping

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Spalding and Storrs, 1838 - 284 Seiten
 

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Seite 2 - Eleven 11 Twelve 12 Thirteen 13 Fourteen ". .... 14 Fifteen 15 Sixteen 16 Seventeen 17 Eighteen 18 Nineteen 19 Twenty 20 Twenty-one 21 Twenty-two 22 Twenty-three 23 Twenty-four 24...
Seite 19 - Decedents," and to repeal said original sections, -and to repeal sections one (1), two (2), three (3), four (4), five (5), six (6), seven...
Seite 257 - 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.
Seite 251 - Point off the given number into periods of two figures each, by putting a dot over the units, another over the hundreds, and so on.
Seite 118 - Multiply the numerators together for a new numerator, and the denominators together for a new denominator.
Seite 80 - How many quarts in 1 peck ? in 2 ? in 3 ? in 4 ? in 5 ? in 6 ? in 7 ? in 8 ? in 9 ? in 10 ? 3.
Seite 200 - Lastly, multiply the third term by the continued product of the second terms, and divide the result by the continued product of the first terms, and the quotient will be the fourth term, or answer required.
Seite 149 - TOT be reduced to a decimal, it produces .boi. Then the decimal" .004, being 4 times as much, is 757, and .039=-^nf. This principle will be true for any number of places. Hence we derive the following RULE for reducing a circulating decimal to a common fraction :— Make the given repetend a numerator ; and the denominator will be as many 9s as there are figures in the repetend.
Seite 113 - Divide the terms of the given fraction by any number, that will divide them without a remainder, and these quotients again in the same manner ; and so on till it appears, that there is no number greater than 1, which will divide them again, and the fraction will be in its lowest terms.
Seite 83 - Bow many days are there in January ? In February ? In March ? In April ? In May ? In June ? In July ? In August?

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