# Robinson's Progressive Practical Arithmetic: Containing the Theory of Numbers, in Connection with Concise Analytic and Synthetic Methods of Solution, and Designed as a Complete Text-book on this Science, for Common Schools and Academies

Ivison, Blakeman, Taylor & Company, 1877 - 359 уелЯдет

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 SIMPLE NUMBERS 8 NUMERATION TABLE 66 SUBTRACTION 73 MULTIPLICATION 79 DEFINITIONS 86 REDUCTION 89 ADDITION OF CTIONS 98 DECIMALS 116
 LONG MEASURE 158 CUBIC MEASURE 165 CIRCULAR MEASURE 198 PERCENTAGE 205 COMMISSION AND BROKERAGE 212 PARTIAL PAYMENTS OR INDORSE 216 GOLD INVESTMENTS 225 INSURANCE 233 RATIO AND PROPORTION 279

### ДзмпцйлЮ брпурЬумбфб

УелЯдб 351 - 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.
УелЯдб 48 - Division is the process of finding how many times one number is contained in another.
УелЯдб 272 - Multiply each payment by its term of credit, and divide the sum of the products by the sum of the payments ; the quotient will be the average term of credit.
УелЯдб 161 - 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.
УелЯдб 254 - RULE. Divide the given amount by the amount of \$1 for the given time and rate, and the quotient will be the principal required.
УелЯдб 171 - Thirty days hath September, April, June, and November; All the rest have thirty-one, Save February, which alone Hath twenty-eight; and one day more We add to it one year to four.
УелЯдб 161 - Square Measure 144 square inches (sq. in.) = 1 square foot (sq. ft.) 9 square feet = 1 square yard (sq. yd.) 30j square yards = 1 square rod (sq. rd.) 160 square rods = 1 acre (A.) 640 acres = 1 square mile (sq.
УелЯдб 73 - The Greatest Common Divisor of two or more numbers is the greatest number that will exactly divide each of them.
УелЯдб 89 - AnS. a fraction by the same number does not alter the value of the fraction...
УелЯдб 282 - Three numbers may be in proportion when the first is to the second as the second is to the third.