# Written Arithmetic

Brewer & Tileston, 1876
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### Contents

 Notation and Numeration 9 Fractional Notation 19 Insurance 42 ANALYSIS 53 Definitions 56 Table of Prime Numbers 59 Definitions 65 Multiplication of Fractions 71
 PRACTICE 125 Miscellaneous Examples 138 DECIMAL FRACTIONS 145 Compound Partnership 164 Per Cent 171 PERCENTAGE 182 Problems in Interest 199 Banking 206

 Common Denominator 84 Federal Money 95 Average of Accounts 97 Comparison of English and Federal 101 Surveyors Measure 108 Page 114
 Involution 249 Simple Partnership 258 187 281 Mensuration 283 Circles Similar Triangles Polygons 293 Methods of Computing Time 329

### Popular passages

Page 117 - 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 268 - Subtract the square number from the left hand period, and to the remainder bring down the next period for a dividend. III. Double the root already found for a divisor ; seek how many times the divisor is contained in the dividend...
Page 68 - Multiplying or dividing both terms of a fraction by the same number does not change the value of the fraction.
Page 289 - A Circle is a plane figure bounded by a curved line called a circumference, every point of which is equally distant from a point within called the centre.
Page 306 - The sum of all the terms. Any three of which being given, the other two may be found.
Page 114 - A circle is a plane figure bounded by a line, every part of which is equally distant from a point within called the centre ; as AEFGBD.
Page 278 - 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.
Page 306 - ... found. This gives rise to twenty distinct cases, a few of the more important of which will be here presented. NOTE I. — For the remaining cases, also for full discussions of Geometrical Progression and Annuities, the student is referred to works on Algebra.
Page 10 - L, fifty ; C, one hundred ; D, five hundred ; M, one thousand.
Page 248 - The first and fourth terms of a proportion are called the extremes, and the second and third terms, the means. Thus, in the foregoing proportion, 8 and 3 are the extremes and 4 and 6 are the means.