# The Common-school Arithmetic: A Practical Treatise on the Science of Numbers

H. Cowperthwait & Company, 1859 - Arithmetic - 270 pages

### Contents

 Mathematical Signs 9 Roman Method 15 United States Money 21 Cubic Measure 27 24 51 Examples and Problems 57 To multiply by 99 999 61 ADDITION 82
 Definitions and Explanations 171 101 178 Classification of Fractions 192 Miscellaneous Problems 201 Multiplication and Division 207 Multiplication and Division 215 Fractional Parts of Denominate 221 Numbers 232

 BILLS AND ACCOUNTS 85 83 153 INTEREST 162
 Practical Problems 243 Other Changes in the Terms of 249 Duodecimal Fractions 261

### Popular passages

Page 239 - A sphere is a solid, bounded by a curved surface, every part of which is equally distant from a point within, called the centre.
Page 30 - NUMBERS. 12 units = 1 dozen. 12 dozen — 1 gross. 12 gross = 1 great gross. 20 units = 1 score.
Page 66 - The number to be divided is called the dividend. The number by which we divide is called the divisor.
Page 25 - An angle less than a right angle is called an acute angle; an angle greater than a right angle and less than two right angles is called an obtuse angle.
Page 233 - The BASE of a figure is the side on which it is supposed to stand. Any side of a figure may be regarded as its base. The side opposite tho base of a rectangle or parallelogram is often called its upper base.
Page 117 - Dividing both numerator and denominator of a fraction by the same number both divides and multiplies the fraction by that number, and, therefore, docs not alter its value.
Page 27 - CUBIC MEASURE 1728 cubic inches = 1 cubic foot 27 cubic feet = 1 cubic yard...
Page 31 - WEIGHTS. 10 milligrammes = 1 centigramme. 10 centigrammes = 1 decigramme. 10 decigrammes = 1 gramme. 10 grammes = 1 decagramme. 10 decagrammes = 1 hectogramme. 10 hectogrammes = 1 kilogramme. 10 kilogrammes = 1 myriagramme.
Page 157 - In any proportion, the product of the means is equal to the product of the extremes.
Page 20 - I, stands for one ; V, for five ; X, for ten; L, for fifty ; C, for one hundred ; D, for five hundred ; and M, for one thousand.