Ray's Elementary Arithmetic: Embracing Mental and Written Exercises, for Beginners

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American Book Company, 1879 - 192 σελίδες
 

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Σελίδα 118 - Thirty days hath September, April. June, and November; All the rest have thirty.one, Save February, which alone Hath twenty.eight; and one day more We add to it one year in four.
Σελίδα 142 - 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 180 - Measures of Length 10 millimeters (mm.) = 1 centimeter (cm.) 10 centimeters = 1 decimeter (dm.) 10 decimeters = 1 meter (m.) 10 meters = 1 dekameter (Dm.) 10 dekameters = 1 hektometer (Hm.) 10 hektometers = 1 kilometer (Km.) 10 kilometers = 1 myriameter (Mm.) Measures of Surface 100 sq.
Σελίδα 167 - 6 27 685 The denominator to a decimal fraction, although not ex-f pressed, is always understood, and is 1 with as many ciphers annexed as there are places in the numerator.
Σελίδα 171 - RULE. Multiply as in whole numbers, and from the right hand of the product point off as many figures for decimals as there are decimal places in both factors.
Σελίδα 110 - Measure 144 square inches (sq. in.) = 1 square foot (sq. ft.) 9 square feet = 1 square yard (sq. yd.) 30j square yards = 1 square rod (sq.
Σελίδα 157 - Now .} of f- is a compound fraction, whose value is found by multiplying the numerators together for a new numerator, and the denominators for a new denominator.
Σελίδα 117 - TABLE. 60 seconds (sec.) make 1 minute, marked min. 60 minutes 1 hour, hr. 24 hours 1 day, da.
Σελίδα 179 - 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 54 - Begin at the right and multiply each figure of the multiplicand by each successive figure of the multiplier, placing the right.hand figure of each partial product directly under the figure used as a multiplier.

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