The Model Mental Arithmetic: Containing Oral Exercises for Graded and Grammar Schools
Eldredge & Brother, 1876 - Mental arithmetic - 184 pages
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acres added amount Analysis apples barrel Base bought brokerage bushels called cents changed cloth coal collected commission common contained cords cost cows cubic decimal denominator denotes difference discount divided dividend divisor dollars dozen earn eighths equal Exercises expressed factors farmer feet fifths figure Find five foot four fourths fraction gain gallons give given greater grocer half Hence horse hundred hundredths inches integer interest invested least length less loss measures miles mills Model months multiplied Name ounces paid pecks Percentage piece pints pounds premium prime Principles quarts quotient receive remainder result reverse rods sells shares Show sixths sold square subtract Table taken tens tenths third thousand thousandths tons units weeks weight worth yards
Page 138 - TIME 60 seconds (sec.) = 1 minute (min.) 60 minutes = 1 hour (hr.) 24 hours = 1 day (da.) 7 days = 1 week (wk.) 365 days = 1 common year (yr.) 366 days = 1 leap year About 30 days = 1 month (mo.) 12 months = 1 year VALUE 10 cents (ct.
Page 133 - SQUARE MEASURE 144 square inches (sq. in.) = 1 square foot (sq. ft.) 9 square feet — 1 square yard (sq. yd.) 30^ square yards = 1 square rod (sq. rd.) 160 square rods = 1 acre (A.) 640 acres = 1 square mile (sq.
Page 137 - TABLE. 10 Mills (m.) = 1 Cent . . ct. 10 Cents = 1 Dime . . d. 10 Dimes = 1 Dollar . $. 10 Dollars = 1 Eagle . E.
Page 79 - Multiplying or dividing both terms of a fraction by the same number does not change the value of the fraction.
Page 136 - Weight is used by apothecaries and physicians in compounding dry medicines. TABLE. 20 Grains (gr.} = 1 Scruple, . . sc., or 3. 3 Scruples = 1 Dram, . . dr., or 3 . 8 Drams = 1 Ounce, . . oz., or § . 12 Ounces = 1 Pound, . . Ib., or ft,.
Page 136 - Table. 16 drams (dr.) are 1 ounce, oz. 16 ounces, 1 pound, Ib. 100 pounds, 1 hundred-weight, cwt. 20 hundred-weight, . 1 ton, T.
Page 133 - TABLE. 12 inches (in.) are 1 foot, ft. 3 feet " 1 yard, yd. 5$ yds., or 16| ft.
Page 73 - If both the numerator and the denominator of a fraction are multiplied by the same number, or divided by the same number, the value of the fraction is not changed.
Page 178 - A can do a piece of work in 3 days, B in 4 days, and C in 6 days : in what time will they do it, working together ? 65.
Page 83 - To reduce two or more fractions to a common denominator. A Common Denominator is a denominator common to two or more fractions 1. Reduce ? and 7, to a common denominator.