# Practical Arithmetic: Embracing the Science and Applications of Numbers

Barnes & Burr, 1863 - 336 σελίδες

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### Περιεχόμενα

 Definitions 9 Addition of Simple Numbers 22 Applications in Addition º e 30 Applications in Subtraction 37 Composite NumbersFactors º 47 Division of Simple Numbers e 54 Proof of Multiplication e 62 PROPERTIES OF NUMBERS 72
 DENOMINATE FRACTIONs 172 Addition of Compound Numbers 178 Time between Dates 186 Applications 193 Addition and Subtraction 199 Simple Proportion 205 Double Rule of Three 213 Percentage 219

 Greatest Common Divisor e e e 79 Properties of Fractions 85 Addition of Fractions e e e 98 Division of Fractions 107 Definition of Decimal Fractions 114 Division of Decimals 125 Reduction of Currency 131 Division of United States Currency 138 DENOMINATE NUMBERS 147 Surveyors Measure e e e e 153 Liquid Measure e e 159 Measure of Time e 165
 Profit and Loss 227 Stocks and Brokerage e 233 Partial Payments 241 Discount e 248 Equation of Payments 257 Customhouse Business e 264 ALLIGATION MEDIAL e 275 EVOLUTION 281 Extraction of the Cube Root e 289 Different Cases 295 MENSURATION 302 To find the contents of a Pyramid e 308

### Δημοφιλή αποσπάσματα

Σελίδα 166 - The circumference of every circle is supposed to be divided into 360 equal...
Σελίδα 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.
Σελίδα 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.
Σελίδα 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.
Σελίδα 94 - Multiply the numerators together for a new numerator, and the denominators together for a new denominator.
Σελίδα 109 - At f| of a dollar a yard, how many yards of cloth can be bought lor 9 dollars ? 6.
Σελίδα 281 - 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.
Σελίδα 270 - 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.
Σελίδα 302 - 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.
Σελίδα 304 - 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.