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

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American Book Company, 1879 - Arithmetic - 192 pages

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Page 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.
Page 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.
Page 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.
Page 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.
Page 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.
Page 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.
Page 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.
Page 117 - TABLE. 60 seconds (sec.) make 1 minute, marked min. 60 minutes 1 hour, hr. 24 hours 1 day, da.
Page 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.
Page 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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