# Introduction to The National Arithmetic: On the Inductive System Combining the Analytic and Synthetic Methods in which the Principles of the Science are Fully Explained and Illustrated : Designed for Common Schools and Academies

Robert S. Davis, 1849 - 324 σελίδες

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Σελίδα 269 - The square of the hypothenuse is equal to the sum of the squares of the other two sides ; as, 5033 402+302.
Σελίδα 277 - A sphere is a solid, bounded by one continued convex surface, every point of which is equally distant from a point within, called the centre.
Σελίδα 84 - Britain. 4 farthings (qr, or far.) make 1 penny, marked d. 12 pence " 1 shilling, " s. 20 shillings " 1 pound, or sovereign, £. 21 shillings " 1 guinea. OBS. 1. It is customary, at the present day, to express farthings in fractions of a penny. Thus, 1 qr. is written ;<!;•_
Σελίδα 158 - Multiply the numerators together for a new numerator, and the denominators together for a new denominator.
Σελίδα 306 - To find the solidity, or volume, of a cylinder. RULE. — Multiply the area of the base by the altitude, and the product will be the solidity or volume.
Σελίδα 205 - ... farthings. (Art. 189.) RULE. — Reduce the shillings, pence, and farthings to the decimal of a pound, and annex it to the pounds ; then proceed as in United States money, and reduce the decimal in the result to a compound number. EXAMPLES FOR PRACTICE. 2. What is the interest of 26£ 10s. for 2 years, 4 months, at 5 per cent. ? Ans. 3£ Is.
Σελίδα 239 - If the extremes and one of the means are given the other mean may be found by dividing the product of the extremes by the given mean.
Σελίδα 270 - A circle is a plane figure bounded by a curved line, every point of which is equally distant from a point within called the center.
Σελίδα 239 - If the means and one of the extremes are given, the other extreme may be found by dividing the product of the means by the given extreme. Thus, if...
Σελίδα 213 - RULE. Divide the given interest by the interest of the given principal for 1 year, and the quotient will be the answer.