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Hence, when the extremes and number of terms are given, to find the common difference, — Divide the difference of the extremes by the number of terms, less 1, and the quotient will be the common difference.
Practical and Mental Arithmetic: On a New Plan: in which Mental Arithmetic ... - Página 259
por Roswell Chamberlain Smith - 1861 - 280 páginas
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## The United States Calculator: Or, Arithmetic Simplified, in Dollars and ...

John M'Nevin - 1841 - 280 páginas
...When the first and last terms (or two extremes) are given to find the common difference. RULE. — Divide the difference of the extremes by the number of terms less 1; the quotient will be the common difference. 1. If the ages of 12 persons are equally different, the...
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## Welch's Improved American Arithmetic: Adapted to the Currency of the United ...

1841 - 218 páginas
...gathers them up singly, returning with them one by one to the basket? Ans. 5 miles, 1300 yards. CASE III. number of terms less 1, and the quotient will be the common difference. Question. — 1. How do you find the common difference? EXAMPLES. 1. The extremes are 2 and 53, and...
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## Higher Arithmetic: Designed for the Use of High Schools, Academies, and Colleges

George Roberts Perkins - 1841 - 252 páginas
...last and first terms, divided by the number of terms, less one, will give the common difference. ROLE. Divide the difference of the extremes by the number of terms, less one. Examples. 1. The first term of an arithmetical progression is 5, the last term is 176, and the...
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## The National Arithmetic ...: Combining the Analytic and Synthetic Methods ...

Benjamin Greenleaf - 1841 - 314 páginas
...The first term, last term, and the number of terms being given, to find the common difference. RULE. Divide the difference of the extremes by the number of terms less one, and the quotient is the common difference. I. The extremes are 3 and 45, and the number of terms...
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## United States Calculator: Or, Arithmetic Simplified

John M'Nevin - 1841 - 280 páginas
...the first and last terms (or two extremes') are given to find the common difference. RULE.—Divide the difference of the extremes by the number of terms less 1; the quotient will be the common difference. 1. If the ages of 12 persons are equally different, the...
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## A New System of Arithmetic, on the Cancelling Plan: Embracing the Rules of ...

Charles Guilford Burnham - 1841 - 312 páginas
...When the extremis and number of terms are given, to find the common difference, ive, have this RULE. Divide the difference of the extremes by the number of terms less l,antl the quotient will be the common difference. 7. If the first term of a series be 3, the last...
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## Arithmetic on the Productive System: Accompanied by a Key and Cubical Blocks

Roswell Chamberlain Smith - 1842 - 306 páginas
...difference. Thus, 28 — 3= 25 ; then, 25 •*- 5= 5 years, the common difference. A. 5 years. 11. Hence, to find the common difference, — Divide the...1, and the quotient will be the common difference. 12. If the extremes be 3 and 23, and the number of terms 1 1, what is the common difference 1 A. 2....
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## Call's Decimal Arithmetic: On a New and Improved Plan Throughout, Comprising ...

Osman Call - 1842 - 192 páginas
...GIVEN, TO FIND THE DIFFERENCE. RULE. — Subtract the first term from the last, divide the remainder by the number of terms less 1, and the quotient will be the difference. » It will readily be seen that the years are one less than the number of terms, from the...
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## Arithmetical Spyglass and Teacher's Assistant: Intended as a Key and ...

Charles Waterhouse - 1842 - 166 páginas
...term, and number of terms given, to find the common difference ; or, sum of all the terms. RULE. — Divide the difference of the extremes by the number of terms less 1, the quotient will be the difference. Multiply the sum of the extremes by the number of terms, half...
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## Arithmetic on the Productive System: Accompanied by a Key and Cubical Blocks

Roswell Chamberlain Smith - 1843 - 306 páginas
...the common difference. Thus, 28—3= 25; then, 25-^5= 5 years, the common difference. A. 5 years. 11. Hence, to find the common difference, —Divide the...the number of terms, less 1, and the quotient will 1>e the common difference. 12. If the extremes be 3 and 23, and the number of terms 11, what is the...
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