Arithmetic step by step, by H. Combes and E. Hines, Μέρος 2

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Σελίδα 104 - Mnltiple of two or more numbers is the least number that can be divided by each of them without a remainder ; thus 30 is the least common multiple of 10 and 15.
Σελίδα 147 - ... 3 per cent. ? 4£ per cent. ? 5 per cent. ? 6 per cent. ? 7 per cent. ? 7£ per cent. ? 8 per cent.?
Σελίδα 108 - If we divide one fraction by another, the quotient is a fraction whose numerator is the product of the numerator of the first fraction and the denominator of the second...
Σελίδα 109 - If two or more fractions have the same denominator they are said to have a common denominator. Thus | and | have the common denominator 8.
Σελίδα 163 - ... worth 75 cents a gallons ? 24. A grocer bought a certain number of eggs at the rate of 22 cents a dozen, and seven-fifths as many at the rate of 14 cents a dozen. He sold them at the rate of 20 cents a dozen, and gained 24 cents by the transaction. How many of each kind did he buy ? 25. A and...
Σελίδα 105 - C 9 cows for (i months ; how much ought each to pay of the rent ? VULGAR FRACTIONS. - A FRACTION is a part of anything, and is represented by two numbers, one above the line and the other below it : thus, £, |, £, — read one-half, twothirds, three-fourths. The. figure above the line is called the numerator ; the figure below the line is called the denominator ; thus, in the fraction £, read four-fifths ; the 4 is the numerator and the 5 is the denominator. The denominator marks the number of...
Σελίδα 159 - CP. Cor. 2. The surface of a sphere is equal to four times the area of a circle of the same diameter ; and therefore, the convex surface of a hemisphere is equal to twice the area of its base. For the area of a circle is equal to the product of half the diameter into half the circumference ; (Art. 30.) that is, to I the product of the diameter and circumference.
Σελίδα 103 - GREATEST COMMON DIVISOR Oral Work 1. Name a number that will divide 8 and 12 exactly; 10 and 15; 12 and 16. A common divisor (cd) of two or more numbers is a number that divides each of them exactly. Thus, 4 is a common divisor of 16 and 24. The greatest common divisor (gcd) of two or more numbers is the greatest number that will divide each of them exactly. Thus, 8 is the gcd of 16 and 24. 2. Name the gcd of 12 and 16 ; of 20 and 30 ; of 18 and 27 ; of 10 and 15 ; of 22 and 33 ; of 63 and 81. The...
Σελίδα 130 - ... as many 9's as there are recurring figures, followed by as many ciphers as there are поп-recurring figures.
Σελίδα 132 - To reduce a given quantity to the Decimal of another given quantity. Rule. Begin with the term of lowest denomination in the first given quantity, and reduce it to a decimal of the next higher denomination ; prefix to this decimal the term (if any) of this higher denomination...

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