# A familiar explanation of the elementary rules of arithmetic. (A familiar explanation of the higher parts of arithmetic. 2nd ed.).

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### Περιεχόμενα

 Simple Rules r 1 ReductionPart I 39 Compound Rules 50 ReductionPart II 70 Practice 106
 Applications of Proportion 116 Area and Volume 171 Extraction of Roots 185 Scales of Notation 207 Appendix 216

### Δημοφιλή αποσπάσματα

Σελίδα 84 - Multiply as in whole numbers, and point off as many decimal places in the product as there are decimal places in the multiplicand and multiplier, supplying the deficiency, if any, by prefixing ciphers.
Σελίδα 113 - Sir," said I, after puzzling a long time over "more requiring more and less requiring less" — "will you tell me why I sometimes multiply the second and third terms together and divide by the first — and at other times multiply the first and second and divide by the third?" "Why, because more requires more sometimes, and sometimes it requires less — to be sure. Haven't you read the rule, my boy?" " Yes, sir, I can repeat the rule, but I don't understand it.
Σελίδα 112 - Then multiply the second and third terms together, and divide the product by the first term: the quotient will be the fourth term, or answer.
Σελίδα 83 - The figures in a decimal expression are the numerator of a decimal fraction ; its denominator is understood to be 1 followed by as many ciphers as there are decimal places in the expression...
Σελίδα 184 - All numbers between 1000 or 103, and 1000000 or 1003, will have two figures in their root. And generally, if we divide a cube into periods of three figures each, by placing a point over units, and one over every third figure from units, the number of points will show the number of figures in the root. EXAMPLES FOR THE BOARD. In order properly to understand the principles of the cube root, the student should be provided with the following blocks : 1. A cubical block, each side measuring 3 inches,...
Σελίδα 8 - Romans used I for 1, V for 5, X for 10, L for 50, C for 100, D or IQ for 500, M or ClQ for 1000.
Σελίδα 202 - A cubic foot of water weighs 1000 oz. What is the weight of a cubic yard (in cwts.
Σελίδα 212 - A person rents a piece of land for £120 a year. He lays out £625 in buying 50 bullocks. At the end of the year he sells them, having expended £12. 10s. in labour. How much per head must he gain by them, in order to realize his rent and expenses, and 10 per cent, upon his original outlay1!
Σελίδα 78 - ... as many figures 9 as there are figures in the period, followed by as many ciphers as there are figures in the non-recurring part.
Σελίδα 212 - Two cubical boxes have edges respectively 3 inch, and 2 ft. 3 in.; find the ratio (1) of their surfaces, and (2) of their volumes. 55. A clock has its face marked so as to shew 24 hours in a day; and on a certain evening half an hour after sunset it was set at 24 o'clock. The morning following it was 8 min. past 4 by a common clock when it was 4 minutes past 8 by this clock. Find the time of sunset the previous evening.