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### Contenido

 THE ARABIC SYSTEM OF NOTATION 9 ADDITION 22 SUBTRACTION 31 MULTIPLICATION 39 DIVISION 50 PRACTICE 165 PERCENTAGE 197
 203 214 Formulas for the five cases of Interest 237 DISCOUNT 247 EXCHANGE 260 INVOLUTION 293 Arithmetical Progression 331 Derechos de autor

### Pasajes populares

Página 250 - Multiply the divisor, thus increased, by the last figure of the root; subtract the product from the dividend, and to the remainder bring down the next period for a new dividend. 5. Double the whole root already found for a new divisor, and continue the operation as before, until all the periods are brought down.
Página 258 - ... and to the remainder bring down the next period for a dividend. 3. Place the double of the root already found, on the left hand of the dividend for a divisor. 4. Seek how often the divisor is contained...
Página 166 - 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.
Página 126 - Write the numbers one beside another, divide by any prime number that will exactly divide two or more, and write the quotients and undivided numbers beneath. II. Divide the quotients in the same manner, and thus continue until no two numbers in the lowest line have a common factor.
Página 174 - 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.
Página 227 - Three quantities are in proportion when the first has the same ratio to the second, that the second has to the third ; and then the middle term is said to be a mean proportional between the other two.
Página 50 - The dividend is the number to be divided. The divisor is the number by which we divide.