# A Common School Arithmetic

Cowperthwait, 1872 - Arithmetic - 336 pages
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### Contents

 PRELIMINARY 7 ADDITION 17 SUBTRACTION 24 REVIEW PROBLEMS 30 DIVISION 41 REVIEW PROBLEMS 49 Division by Factors 65 COMMON FRACTIONS 72
 COMPOUND NUMBERS 149 ADDITION OF COM 157 DIVISION 164 MEASUREMENTS 170 PERCENTAGE 176 PROFIT AND Loss 183 REVIEW PROBLEMS 190 Cash Balances 241

 FRACTIONS 85 Complex Fractions 93 DECIMAL FRACTIONS 102 ADDITION AND SUB 111 UNITED 118 BUSINESS METHODS 124 REVIEW PROBLEMS 132
 GENERAL TAXES 254 angles 279 WORK 293 SERIES OR PROGRES 304 PROBLEMS FOR ANAL 311 GENERAL REVIEW 321 DUODECIMALS 328

### Popular passages

Page 136 - 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. mi.) Cubic Measure 1728 cubic inches (cu.
Page 137 - 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 139 - LIQUID MEASURE 4 gills (gi.) = 1 pint (pt.) 2 pints = 1 quart (qt...
Page 332 - Multiplying or dividing both terms of a fraction by the same number does not change the value of the fraction.
Page 134 - Measure 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 92 - Reduce the fractions to a common denominator and divide the numerator of the dividend by the numerator of the divisor.
Page 46 - Rule. — I. Draw curved lines at both sides of the dividend, and place the divisor at the left. II. Divide the number expressed by the fewest terms at the left that will contain the divisor, and place the quotient at the right. III. Multiply the divisor by this quotient, write the product under the partial dividend, subtract, and to the remainder annex the next term of the dividend. IV. Divide as before, and thus continue until all the terms of the dividend have been used. V. If any partial dividend...
Page 140 - DRY MEASURE 2 pints (pt.) = 1 quart (qt.) 8 quarts =1 peck (pk.) 4 pecks = 1 bushel (bu...
Page 236 - Multiply each debt by its term of credit, and divide the sum of the products by the sum of the debts. The quotient will be the average term of credit.
Page 204 - RULE. Find the amount of the principal to the time when the payment, or the sum of the payments, equals or exceeds the interest due.