Higher Arithmetic: Designed for the Use of High Schools, Academies, and Colleges ... with an Appendix |
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Page 16
... Hence , 3 + 2 , repeated as many times as there are units in 4 + 5 , becomes ( 3 + 2 ) × ( 4 + 5 ) = 12 + 8 + 15 + 10 . Again , let it be required to multiply 7-3 by 4 + 2 : Proceeding as in the last example , we find ( 7-3 ) × ( 4 + 2 ) ...
... Hence , 3 + 2 , repeated as many times as there are units in 4 + 5 , becomes ( 3 + 2 ) × ( 4 + 5 ) = 12 + 8 + 15 + 10 . Again , let it be required to multiply 7-3 by 4 + 2 : Proceeding as in the last example , we find ( 7-3 ) × ( 4 + 2 ) ...
Page 17
... Hence , it follows that any number being diminished by the sum of its digits , will become divisible by 9 . Also , any number divided by 9 , will leave the same remainder as the sum of its digits when divided by 9 . The above properties ...
... Hence , it follows that any number being diminished by the sum of its digits , will become divisible by 9 . Also , any number divided by 9 , will leave the same remainder as the sum of its digits when divided by 9 . The above properties ...
Page 18
... hence , this method is called Eratosthenes ' Sieve . The number 2 , although an even number , must be regarded as coming under our definition of a prime , since the only number which will divide it is itself . TABLE OF PRIME NUMBERS ...
... hence , this method is called Eratosthenes ' Sieve . The number 2 , although an even number , must be regarded as coming under our definition of a prime , since the only number which will divide it is itself . TABLE OF PRIME NUMBERS ...
Page 20
... hence it follows that all primes , except 2 and 5 , must end with one of the figures , 1 , 3 , 7 , or 9 . When it is required to determine whether a given number is a prime , we first notice the terminating figure ; if it is different ...
... hence it follows that all primes , except 2 and 5 , must end with one of the figures , 1 , 3 , 7 , or 9 . When it is required to determine whether a given number is a prime , we first notice the terminating figure ; if it is different ...
Page 21
... Hence , any odd number divided by 6 , must give 1 , 3 , or 5 , for a remainder ; if the remainder is 3 , the number must have been divisible by 3 , since the divisor and re- mainder are each divisible by 3. Hence , the remainder found ...
... Hence , any odd number divided by 6 , must give 1 , 3 , or 5 , for a remainder ; if the remainder is 3 , the number must have been divisible by 3 , since the divisor and re- mainder are each divisible by 3. Hence , the remainder found ...
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Common terms and phrases
12 days 1st column acres added amount of $1 annexed annuity arith arithmetical progression bushel ciphers common difference compound interest continued fraction cube root decimal figures denoted diameter digits diminished dividend divisible by 9 EXAMPLES feet find the interest find the present following RULE fraction is equivalent gallons geometrical progression given principal gives greatest common measure gression half the number Hence improper fraction inches indorsement interest of $1 last term least common multiple less method metical progression miles mixed number multiplied nearly number is divisible number of dollars number of terms numerator and denominator obtain Operation oxen partial fraction period pounds present worth prime factors quantity quotient rate per cent ratio reciprocal Reduce remainder result right-hand figure Rule under Art second term shillings Solution square root subtract tabular number third term trial divisor true divisor twice the product vulgar fraction whole number worth of $1 yards
Popular passages
Page 194 - Multiply the divisor, thus augmented, by the last figure of the root, and subtract the product from the dividend, and to the remainder bring down the next period for a new dividend.
Page 39 - Multiply all the numerators together for a new numerator, and all the denominators together for a new denominator.
Page 311 - 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.
Page 134 - 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 period when the payments, taken together, exceed the interest due...
Page 17 - ... any number divided by 9 will leave the same remainder as the sum of its digits divided by 9.
Page 134 - 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.
Page 178 - To raise a whole number or a decimal to any power, use it as a factor as many times as there are units in the exponent.
Page 249 - His head weighed as much as his tail and half his body, and his body weighed as much as his head and tail together. What was the weight of the fish ? Let 2x = the weight of the body in pounds.
Page 323 - That is, the cube of the sum of two quantities is equal to the cube of the first, plus three times the square of the first...
Page 41 - Then multiply each numerator by all the denominators, except its own, for a new numerator, and all the denominators together for a common denominator.