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RULE. 1. Multiply the number of terms, less 1, by the common difference, and to the product add the first term, the sum is the last term.
The Youth's Assistant in Theoretic and Practical Arithmetic: Designed for ... - Page 118
by Zadock Thompson - 1832 - 168 pages

## The Teachers Assistant. Or, A System of Practical Arithmetic: Wherein the ...

Arithmetic - 1811 - 210 pages
...common difference, and number of terms given to find the last term, and sum of all the terms. RULE. 1 . Multiply the number of terms, less 1, by the common difference, and ,to the product add the first teim, the sum is the last term. 2. Multiply the sum of the two extremes by the number of terms, and...

## The Teachers' Assistant, Or, A System of Practical Arithmetic: Wherein the ...

Arithmetic - 1817 - 214 pages
...common difference, and number of terms given, to find the last term, and sum of all the terms. RULE. 1. Multiply the number of terms, less 1, by the common...difference, and to the product add the first term, the sum is the last term. > 2. Multiply the sum ef the two extremes by the number of terms, and half...

## The Scholar's Arithmetic: Designed for the Use of Schools in the United States

Jacob Willetts - Arithmetic - 1822 - 200 pages
...difference, and number of terms given to find the last term, and the sum of all the terms. RFLE. First, Multiply the number of terms, less 1, by the common....difference, and to the product add the first term ; the sum is the last terns. Secondly, Multiply the sum of the two extremes by the number of terms,...

## The Teachers' Assistant: Or a System of Practical Arithmetic

Stephen Pike - Arithmetic - 1824 - 212 pages
...common difi'erence, and number of terms given, to find the last term, and sum of all the terms. RULE. 1. Multiply the number of terms, less 1, by the common...difference, and to the product add the first term, the sum is the last term. 2. Multiply the sum of the two extremes by the number of terms, and half...

## The American Tutor's Assistant Revised: Or, A Compendious System of ...

Zachariah Jess - Arithmetic - 1824 - 228 pages
...difference, and number of term's given, to find the last term, ağd sum of all the terms; RULE. First, Multiply the number of terms, less 1, by the common difference, and to that product add the first term, the sum is the last term. Secondly, Multiply the sum of the two extremes...

## The New Federal Calculator, Or, Scholar's Assistant: Containing the Most ...

Thomas Tucker Smiley - Arithmetic - 1825 - 224 pages
...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 1 by the common difference and to that product add the first term' the sum is the last term. 2. Add the first and last terms together,...

## The Common School Manual: A Regular and Connected Course of Elementary ...

Montgomery Robert Bartlett - Education - 1828 - 426 pages
...find the last term, and the sum of all the terms;— RULE. 1. Multiply the number of terms, less by, 1, by the common difference, and, to the product, add the first term, the sum will be the last term. 2. Add the first and the last terms together, and multiply the sum by...

## Adams's New Arithmetic: Arithmetic, in which the Principles of Operating by ...

Daniel Adams - Arithmetic - 1828 - 286 pages
...the first term, the common difference, and the number of tenns, are given, to find the last term, — Multiply the number of terms, less 1, by the common difference, and add the first term to the product for the last term. 2. If the first term be 4, the common difference...