Practical Arithmetic: Embracing the Science and Applications of Numbers

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Barnes & Burr, 1863 - 336 páginas
 

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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.

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