## Modern Commercial Arithmetic |

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9 mo acre agent altitude apothem avoirdupois bank base bill bought brokerage bushel Cash ciphers circumference commission common fraction compound interest dealer debt decimal denominator diameter digits discount divided dividend divisor dollars draft endowment policy equal equation exchange figure Find the amount Find the area Find the cost Find the interest Find the number gain per cent gallon guaranty hundred hundredths hypotenuse indorse invested July July 22 June June 18 length loss March March 20 marked price Mdse MENTAL PROBLEMS minuend mixed money being worth multiply number of days OPERATION paid parallelogram payable payment pounds premium present worth principal quotient regular polygon selling price Sept side sold square root square yards subtract term triangle units weighing wheat wide Write

### Popular passages

Page 82 - Thirty days hath September, April, June, and November ; All the rest have thirty-one, Except the second month alone, Which has but twenty-eight, in fine, Till leap year gives it twenty-nine.

Page 79 - LIQUID MEASURE 4 gills (gi.) = 1 pint (pt.) 2 pints — 1 quart (qt...

Page 80 - Weight This is used to. some extent in filling prescriptions. The grain, ounce, and pound are the same as in troy weight, but the ounce is divided differently. 20 grains (gr.) = 1 scruple . . . sc. or 3 3 scruples = 1 dram . . . dr. or 3 8 drams = 1 ounce . . . oz. or 5 12 ounces = 1 pound . . . Ib. or ft Apothecaries...

Page 77 - LENGTH 12 inches (in.) =1 foot (ft.) 3 feet = 1 yard (yd.) 5\ yards, or 16| feet = 1 rod (rd.) 320 rods, or 5280 feet = 1 mile (mi.) SQUARE MEASURE 144 square inches (sq.

Page 78 - CUBIC MEASURE. 1728 cubic inches (cu. in. ) = 1 cubic foot (cu. ft.).

Page 52 - Multiplying or dividing both terms of a fraction by the same number does not change the value of the fraction.

Page 80 - TROY WEIGHT. 24 grains (gr.) = 1 pennyweight (pwt.). 20 pennyweights = 1 ounce (oz.). 12 ounces = 1 pound (lb.). 351. Apothecaries' weight is used in mixing medicines and in selling them at retail. APOTHECARIES

Page 35 - Similarly, any term may be transposed from one member of an equation to the other by changing its sign.

Page 32 - Multiplying or dividing both Dividend and Divisor by the same number does not change the Quotient.

Page 79 - SQUARE MEASURE 625 square links 1 square rod 16 square rods 1 square chain 10 square chains .... 1 acre 640 acres 1 square mile 36 square miles 1 township...