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### Innhold

 Numeration 9 Roman Notation 16 Subtraction of Simple Numbers 27 Proof of Subtrnction 33 Pr wf of Multiplication 42 Exercises in Multiplication 48 Proof of Division 56 Exercises in Division 66
 Duodecimals 190 Value of Foreign Coins at Custom House 198 Compound Proportion 214 Percentage 222 Interest by Aliquot Parts 228 Interest when time is Estimated in Days 234 Discount 246 Banking 250

 Least Common Multiple 83 Subtraction of Fractions 91 Reciprocals of Numbers 97 Addition of Decimal Fractions t 103 Federal Money 111 Wine Measure 133 Circular Measure or Motion 139 Addition of Denominate Numbers 150 Exercises in Addition and Subtraction 156 Questions involving tbe preceding Rules 16 1 169 Addition of Denominate Fractions 175 Repetends 182
 Insurance 257 Double Fellowship 264 Involution 279 Extraction of the Square Root 287 Extraction of the Cube Root 294 i 295 Examples involving the Cube Root 306 Geometrical Progression 312 Alligation Alternate 319 Mensuration 325 Promiscuous Questions 338 Opphavsrett

### Populĉre avsnitt

Side 72 - Then multiply all the numerators together for a new numerator, and all the denominators together for a new denominator...
Side 105 - 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.
Side 101 - 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.
Side 230 - The rule for casting interest, when partial payments have been made, is to apply the payment, in the first place, to the discharge of the interest then due. If the payment exceeds the interest, the surplus goes towards discharging the principal, and the subsequent interest is to be computed on the balance of principal remaining due. If the payment be less than the interest, the surplus of interest must not be taken to augment the principal; but interest continues on the former principal until the...
Side 322 - To find the area of a trapezoid. RULE. Multiply half the sum of the two parallel sides by the perpendicular distance between them : the product will be the area.
Side 275 - That is, the square of the sum of two numbers is equal to the square of the first number, plus twice the product of the two numbers, plus the square of the second number.
Side 334 - A can do a piece of work in 3 days, B in 4 days, and C in 5 days, how many...
Side 102 - Divide as in whole numbers ; give as many decimal places in the quotient as those in the dividend exceed those in the divisor ; if there are not as many, supply the deficiency by prefixing ciphers.
Side 101 - In multiplication of decimals, we know that the number of decimal places in the product is equal to the sum of those in both the factors.
Side 44 - DIVISION we find how many times one number is contained in another. The number to be divided, is called the DIVIDEND ; the number by which to divide is called the DIVISOR; the number of times the dividend contains the divisor is called the QUOTIENT.