# Practical Arithmetic: Embracing the Science and Applications of Numbers

Barnes & Burr, 1863 - 336 páginas

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### Contenido

 Definitions 9 Addition of Simple Numbers 22 Applications in Addition 30 Applications in Subtraction 37 Composite Numbers_Factors 47 Division of Simple Numbers 54 Proof of Multiplication 62 PROPERTIES OF NUMBERS 72
 DENOMINATE FRACTIONS 172 Addition of Compound Numbers 178 Time between Dates 185 Applications 193 Addition and Subtraction 199 Simple Proportion 205 Double Rule of Three 213 Percentage 219

 Greatest Common Divisor 79 Properties of Fractions 85 Addition of Fractions 98 Division of Fractions 107 Definition of Decimal Fractions 114 Subtraction of Decimals 122 Applications in the Four Rules 128 Division of United States Currency 138 DENOMINATE NUMBERS 147 Surveyors Measure 153 Liquid Measure 159 Measure of Time 165
 Profit and Loss 227 Interest 235 Partial Payments 241 Compound Interest 245 Exchange 253 Assessing Taxes 262 ALLIGATION MEDIAL 275 EVOLUTION 281 Extraction of the Cube Root 289 Different Cases 295 MENSURATION 302 To find the contents of a Pyramid 308

### Pasajes populares

Página 166 - The circumference of every circle is supposed to be divided into 360 equal...
Página 125 - To multiply a decimal by 10, 100, 1000, &c., remove the decimal point as many places to the right as there are ciphers in the multiplier ; and if there be not places enough in the number, annex ciphers.
Página 165 - 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.
Página 126 - When a decimal number is to be divided by 10, 100, 1000, &c., remove the decimal point as many places to the left as there are ciphers in the divisor, and if there be not figures enough in the number, prefix ciphers.
Página 94 - Multiply the numerators together for a new numerator, and the denominators together for a new denominator.
Página 109 - At f| of a dollar a yard, how many yards of cloth can be bought lor 9 dollars ? 6.
Página 279 - Multiply the divisor, thus increased, by the last figure of the root; subtract the product from the dividend, and to the remainder bring down the next period for a new dividend.
Página 268 - A wall to be built to the height of 27 feet, was raised to the height of 9 feet by 12 men in 6 days : how many men must be employed to finish the wall in 4 days at the same ruts.- of working 1 31.
Página 300 - A circle is a portion of a plane bounded by a curved line, all points of which are equally distant from a point within called the centre. The bounding line is called the circumference of the circle.
Página 302 - To find the solid contents of a prism. Rule. — Multiply the area of the base by the altitude, and the product will be the contents.