# First book of arithmetic for the use of schools. [With] Key. High-school ed., ed. with additional examples [&c.] by A.K. Isbister

Alexander Kennedy Isbister
1865

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### Contents

 Addition Table 6 Notation 12 Simple Multiplication 19 Compound Addition 25 Reduction 35 Weights and Measures 36 Reduction of 42 Bills of Parcels 49
 Tare and Tret 55 Commission Brokerage Insur 61 Duodecimal Multiplication 80 Greatest Common Measure 90 Decimals 106 Unitary System 119 Simple Proportion 120 Examination Papers 132

### Popular passages

Page 92 - 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 10 - 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 79 - RULE. Reduce the fraction to its lowest terms, then extract the square root of the numerator for a new numerator, and the square root of the denominator for a new denominator. If...
Page 96 - RULE. Multiply all the numerators together for a new numerator, and all the denominators for a new denominator: then reduce the new fraction to its lowest terms.
Page xxxii - Sixpenny and One Shilling Juvenile Books are: The Subjects of each Volume have been selected with a due regard to Instruction and Entertainment; they are well printed on fine paper, in a superior manner; the Shilling Series is Illustrated with Frontispieces printed In Colours; the Sixpenny Series has beautiful Engravings; and they are elegantly bound.
Page xxvii - It is published with a view to the teaching of the history of Europe since the Christian era by the biographic method, recommended by Mr. Carlyle as the only proper method of teaching history. The style of the book is clear, elegant, and terse. The biographies are well, and, for the most part, graphically told.
Page xxxi - PRESENTATION SERIES OF STANDARD WORKS. In small Crown 8vo, printed on toned paper, bound in cloth extra, gilt edges, bevelled boards, with Portrait engraved on Steel, price 3s. 6d. each. WISDOM, WIT, AND ALLEGORY. Selected from 'The Spectator.
Page 67 - To reduce an improper fraction to a whole or mixed number, — RULE : Divide the numerator by the denominator ; the quotient will be the whole or mixed number.
Page 9 - CUBIC MEASURE 1728 cubic inches = 1 cubic foot 27 cubic feet = 1 cubic yard...
Page 69 - Find a common measure, by dividing the greater term by the less, and this divisor by the remainder, and so on, always dividing the last divisor' by the last remainder, till nothing remains, the last divisor is the common measure.* 2. Divide both of the terms of the fraction by the common measure, and the quotients will make the fraction required. • *Tofmd the greatest common measure...