Rational arithmetic |
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added addition amount answer apply arithmetic better bring calculations called cent changes common containing continue cost counters cube decimal denomination difference difficult digits divided divisible divisible by 9 divisor eight equal evident exactly example explanation expressed factors feet figures five follows four fractions gallons give given heaps higher hour hundreds increase interest knowledge leave less likewise manner means measure method miles mind multiplied nine noughts obtained once operations parcels perform period piece pounds practice present prime principle proportion proved pupil quantity questions quotient readily reason reduce remainder result root rule shillings shown signs simple square step subtract suppose taken tens tenths term third thousands understand units whole number write written yards
Popular passages
Page 69 - ... any number divided by 9 will leave the same remainder as the sum of its digits divided by 9.
Page 99 - It will be seen that we multiply the denominator of the dividend by the numerator of the divisor for the denominator of the quotient, and the numerator of the dividend by the denominator of the divisor for the numerator of the quotient.
Page 96 - Multiply the numerators together for a new numerator, and the denominators together for a new denominator.
Page 194 - Ans. 12 at 2s. 6d., 12 at 3s. 8d., 18 at 4s., and 18 at 4s. 8d. 4". A goldsmith has gold of 17, 18, 22, and 24 carats fine ; how much must he take of each to make it 21 carats fii^e .
Page 210 - Sessa requested that he might be allowed one grain of wheat for the first square on the chess board, 2 for the second, 4 for the third, and so on, doubling continually, to 64, the whole number of squares. Now, supposing, a pint to contain 7680 of these grains, and one quarter or 8 bushels to be worth yja 6d, it is required to compute the value of all the corn ? Ans.
Page 199 - A person travelling into the country, went 3 miles the first day, and increased every day by 5 miles, till at last he went 58 miles in one day : how many days did he travel ? Ans.
Page 198 - The sum of all the terms. Any three of which being given, the other two may be found.
Page 184 - Multiply each payment by the time, at which it is due; then divide the sum of the products by the sum of the payments, and the quotient will be the time required.
Page 211 - Many vegetable productions, if all their seeds were put into the earth, would in a few years cover the.whole surface of the globe. The hyosciamus, which of all the known plants produces perhaps the greatest number of seeds, would for this purpose require no more than four years. According to some experiments, it has been found that one stem of the hyosciamus produces sometimes more ; than 50000 seeds...
Page 108 - Explain why, in the multiplication of two decimals, the number of decimal places to be pointed off in the product is equal to the sum of the decimal places in the multiplicand and multiplier.
Bibliographic information
| Title | Rational arithmetic |
| Author | Sarah Porter |
| Published | 1852 |
| Original from | Oxford University |
| Digitized | 11 Sep 2006 |
| Export Citation | BiBTeX EndNote RefMan |