# A Practical Arithmetic

Ginn, Heath, 1882 - 351 σελίδες

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### Περιεχόμενα

 Numbers 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

### Δημοφιλή αποσπάσματα

Σελίδα 153 - LIQUID MEASURE 4 gills (gi.) = 1 pint (pt.) 2 pints = 1 quart (qt.) 4 quarts = 1 gallon (gal.) 31| gallons = 1 barrel (bbl.) 2 barrels...
Σελίδα 263 - Sixty days after sight of this First of Exchange (Second and Third of the same tenor and date unpaid...
Σελίδα 152 - 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...
Σελίδα 151 - Square Measure 144 square inches (sq. in.) = 1 square foot (sq. ft.) 9 square feet = 1 square yard (sq.
Σελίδα 107 - A number is divisible by 3 if the sum of its digits is divisible by 3• A number is divisible by 9 if the sum of its digits is divisible by 9.
Σελίδα 122 - To reduce a mixed number to an improper fraction, Multiply the whole number by the denominator of the fraction, and to the product add the numerator ; under this sum write the denominator.
Σελίδα 277 - The sum of two numbers multiplied by their difference, is equal to the difference of their squares.
Σελίδα 48 - If the divisor contains decimal places, we may remove the decimal point from the divisor, provided we carry the decimal point in the dividend as many places to the right as there are decimal places in the divisor.
Σελίδα 308 - ... terms. Hence, The sum of an arithmetical series may be found by multiplying one-half the sum of the first and last terms by the number of terms. Thus, the sum of eight terms of the series whose first term is 3, and last term 38, is EXERCISE LXXXVII. Find the sum of : 1.
Σελίδα 160 - 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.