# A Practical Arithmetic

Ginn, 1881 - Arithmetic - 351 pages
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### Contents

 NUMBERS i 1 DECIMAL FRACTIONS 6 ADDITION 13 SUBTRACTION 19 APPLICATIONS OF ADDITION AND SUBTRACTION 27 MULTIPLICATION 30 DIVISION 45 MISCELLANEOUS EXERCISES 58
 METRIC AND COMMON MEASURES 200 PROPORTION 204 PERCENTAGE 218 INTEREST AND DISCOUNT 232 STOCKS 253 EXCHANGE 260 AVERAGES 265 POWERS AND ROOTS 273

 METRIC MEASURES 70 MULTIPLES AND MEASURES OF NUMBERS 106 COMMON FRACTIONS 120 MEASURES IN COMMON USE 148 PROBLEMS 178
 LOGARITHMS 287 APPROXIMATIONS 302 PROGRESSIONS 308 MISCELLANEOUS EXERCISES 318

### Popular passages

Page 155 - LIQUID MEASURE 4 gills (gi.) = 1 pint (pt.) 2 pints — 1 quart (qt...
Page 162 - Numbers. 12 units = 1 dozen. 12 dozen = 1 gross. 12 gross = 1 great gross. 20 units = 1 score. Paper. 24 sheets = 1 quire. 20 quires = 1 ream. 2 reams = 1 bundle. 5 bundles = 1 bale.
Page 265 - Sixty days after sight of this first of Exchange (Second and Third of the same tenor and date unpaid...
Page 154 - CUBIC MEASURE 1728 cubic inches (cu. in.) =1 cubic foot (cu. ft.) 27 cubic feet = 1 cubic yard (cu. yd.) 128 cubic feet = 1 cord (cd...
Page 109 - A number is divisible by 3 if the sum of its digits is divisible by 3.
Page 279 - The sum of two numbers multiplied by their difference, is equal to the difference of their squares.
Page 157 - 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 293 - The logarithm of any power of a number is equal to the logarithm of the number multiplied by the exponent of the power.
Page 292 - The logarithm of a product is the sum of the logarithms of the factors.
Page 153 - Square Measure 144 square inches (sq. in.) = 1 square foot (sq. ft.) 9 square feet = 1 square yard (sq.