B. F. Johnson Publishing Company, 1900 - 442 σελίδες

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### Περιεχόμενα

 ILLUSTRATIONS AND DEFINITIONsUNITs AND NUMBERs 15 ADDITION 25 SUBTRACTION 39 MULTIPLICATION 52 Division 64 REVIEW WORK 80 FACTORS AND MULTIPLES 87 UNITED STATES MONEY 94
 GENERAL REVIEW WORK 259 PERCENTAGE 266 CoMMERCIAL DISCOUNT 279 PROFIT AND Loss 285 REVIEW WORK 293 BANKS AND BANK Discount 316 PRESENT Worth AND TRUE DISCOUNT 324 REVIEW WORK 331

 CoMMON FRACTIONS 122 ILLUSTRATIVE SoLUTIONs with Problems for Practice 150 RELATION of NUMBERs 156 PROPORTION 163 THE EQUATION 169 REVIEW WORK 178 Compound NUMBERs 189 LoNGITUDE AND TIME 236 PRACTICAL MEASUREMENTs 244 THE METRIC SYSTEM 252
 PROPORTIONAL PARTs 337 Powers AND Roots 354 MISCELLANEoUs PROBLEMs 371 APPENDIX 390 GREATEST COMMON DIVISOR 404 Exchange 410 AVERAGE OF PAYMENTS 415 INTRODUCTION TO ALGEBRA 421 Πνευματικά δικαιώματα

### Δημοφιλή αποσπάσματα

Σελίδα 199 - 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.
Σελίδα 109 - To multiply a decimal by 10, 100, 1000, &c., remove the decimal point as many places to the right as there are ciphers in the multiplier ; and if there be not places enough in the number, annex ciphers.
Σελίδα 251 - OF WEIGHT 10 milligrams (mg.) = 1 centigram (eg.) 10 centigrams = 1 decigram (dg.) 10 decigrams = 1 gram (g.) 10 grams = 1 dekagram (Dg.) 10 dekagrams = 1 hectogram (Hg.) 10 hectograms = 1 kilogram...
Σελίδα 212 - 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 215 - 1 Square Chain . sq. ch. 10 Square Chains " 1 Acre A. 640 Acres " 1 Square Mile . . sq. mi. 36 Square Miles (6 miles square)
Σελίδα 430 - The square of the sum of two numbers is equal to the square of the first number plus twice the product of the first and second number plus the square of the second number.
Σελίδα 109 - When a decimal number is to be divided by 10, 100, 1000, &c., remove the decimal point as many places to the left as there are ciphers in the divisor, and if there be not figures enough in the number, prefix ciphers.
Σελίδα 351 - Whence it follows, that the cube of a number composed of tens and units, is equal to the cube of the tens, plus three times the product of the square of the tens by the units, plus three times the product of the tens by the square of the units, plus the cube of the units. This being the case, the cube of the tens...
Σελίδα 109 - To divide by 10, 100, 1000, &c., remove the decimal point as many places to the left as there are ciphers on the right hand of the divisor.
Σελίδα 217 - For the purpose of measuring angles, the circumference is divided into 360 equal parts, called degrees ; each degree into 60 equal parts, called minutes; each minute into 60 equal parts, called seconds.