# A Mental Arithmetic on the Inductive Plan: Being an Advanced Intellectual Course ...

R.S. Davis & Company, 1879 - 180 σελίδες

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Δεν εντοπίσαμε κριτικές στις συνήθεις τοποθεσίες.

### Περιεχόμενα

 Ενότητα 1 3 Ενότητα 2 4 Ενότητα 3 5 Ενότητα 4 28 Ενότητα 5 42 Ενότητα 6 52 Ενότητα 7 53 Ενότητα 8 61
 Ενότητα 14 107 Ενότητα 15 113 Ενότητα 16 128 Ενότητα 17 133 Ενότητα 18 141 Ενότητα 19 157 Ενότητα 20 161 Ενότητα 21 162

 Ενότητα 9 67 Ενότητα 10 71 Ενότητα 11 86 Ενότητα 12 94 Ενότητα 13 99
 Ενότητα 22 165 Ενότητα 23 167 Ενότητα 24 177 Πνευματικά δικαιώματα

### Δημοφιλή αποσπάσματα

Σελίδα 72 - Multiplying the numerator and denominator of a fraction by the same number does not alter the value of the fraction.
Σελίδα 25 - Multiplication is the process of taking one number as many times as there are units in another number.
Σελίδα 128 - C died, it is required to divide the whole sum properly between the other two ; how much should each receive ? 20.
Σελίδα 33 - The Dividend is the number to be divided. The Divisor is the number by which we divide.
Σελίδα 108 - INTEREST is money paid for the use of money. The PRINCIPAL is the sum of money for which interest is paid. Interest is usually reckoned at a certain rate per cent, for one year. Thus, 6 per cent, means that...
Σελίδα 36 - If 4% bonds to the amount of \$8000 face value are bought at 92^%, find the cost of the bonds, and the rate of income on the investment. 12. If 3 men can do a piece of work in 8 days of 10 hours each, how many men will be required to do the same work in 6 days of 8 hours each ? (Solve by proportion.) 13. By selling a horse for \$144, a profit of 60 per cent is made; find the cost of the horse.
Σελίδα 83 - If 3 pounds of butter cost | of a dollar, what cost 10 pounds ? 32. If 4 men can do a piece of work in 16^ days, how long will it take 3 men to do the same ? 33. If | of a rod of land is worth £ of a dollar, what is a rod worth ? ANALYSIS.
Σελίδα 71 - The numerator and denominator are called the terms of the fraction. When the numerator is less than the denominator, the fraction is called a proper fraction ; when the numerator is equal to or larger than the denominator, the fraction is called an improper fraction.
Σελίδα 126 - York, and travel in opposite directions, one at the rate of 4^ miles an hour, and the other at the rate of...
Σελίδα 127 - A cistern has 2 pipes ; the first will fill it in 2 hours, and the second will empty it in 3 hours ; if both pipes are open, how long will it take to fill the cistern ? 9. A cistern has 4 pipes ; the first will fill it in 2 hours, the second will fill it...