Outlines of Number Science

George H. Hebb Press, 1884 - 192 σελίδες

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Σελίδα 70 - ... by dividing the numerator of the dividend by the numerator of the divisor, and the denominator of the dividend by the denominator of the divisor.
Σελίδα 30 - To multiply a decimal by 10, 100, 1000, &c., remove the decimal point as many places to the right as there are ciphers in the multiplier ; and if there be not places enough in the number, annex ciphers.
Σελίδα 49 - Divide the greater number by the less, then the less number by the remainder ; thus continue to divide the last divisor by the last remainder, until there is no remainder. The last divisor will be the greatest common divisor. NOTE.
Σελίδα 14 - L, fifty; C, one hundred; D, five hundred ; M, one thousand.
Σελίδα 100 - A brick is 8 in. long, 4 in. wide, and 2 in. thick.
Σελίδα 174 - Ans. 33.97 ch. +. 5. A room is 20 ft. long, 16 ft. wide, and 12 ft high. What is the distance from one of the lower corners to the opposite upper corner?
Σελίδα 51 - Take every prime number, which is a factor of any one of the given numbers, the greatest number of times that it occurs in any one of the numbers.
Σελίδα 73 - If 7 men can do a piece of work in 4| days, how long will it take 1 man to do it ? How long will it take 3 men to do it ? 4.
Σελίδα 174 - PRACTICE. 1. If 6 men build a wall 20 ft. long, 6 ft. high, and 4 ft. thick, in 16 days, in what time will 24 men build one 200 ft. long, 8 ft. high, and 6 ft. thick ? Ans. 80 days.
Σελίδα 161 - The square of a number composed of tens and units is equal to the square, of the tens, plus twice the tens multiplied by the units, plus the square of the units.

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