Arithmetic for schools, abridged from the author's 'Familiar explanation of arithmetic'.

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Σελίδα 150 - 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 228 - Bought a quantity of goods for £150 ready money and sold them again for £200 payable £ of a year hence ; what was the gain in ready money, allowing discount at 4£ per cent.
Σελίδα 225 - A cubic foot of water weighs 1000 oz. What is the weight of a cubic yard (in cwts.
Σελίδα 162 - If 5 men can reap a field whose length is 800 feet and breadth 700 feet in 3^ days of 14 hours each ; in how many days of 12 hours each can 7 men reap a field 1800 feet long and 960 broad?
Σελίδα 89 - RULE. Multiply all the numerators together for a new numerator, and all the denominators for a new denominator: then reduce the new fraction to its lowest terms.
Σελίδα 180 - ... gain 5 per cent. upon the prime cost of the 4 pipes ? 13. A person having bought goods for £20, sells half of them so as to gain 10 per cent.; for how much must he sell the remainder so as to gain 20 per cent. upon the whole ? 14. I bought 56 gallons of brandy at 22s.
Σελίδα 210 - ... surfaces and solids occurs.* Ex. I. Find the number of acres in a rectangular field, of which the length is 35 chains 72 links, and the breadth 24 chains 8 links.
Σελίδα 216 - The approximate square root of a fraction may be obtained by taking the square root of the numerator, and then of the denominator, and dividing the first result by the second. If the denominator is not a perfect square, it is better to reduce the fraction to an equivalent fraction whose denominator is a perfect square.
Σελίδα 158 - Given that the velocity of a falling body is proportional to the time...
Σελίδα 151 - 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.

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