A New System of Mental Arithmetic ...Author, and published, 1837 - 173 σελίδες |
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Σελίδα 2
... digits will be divisible by 3 without a remainder . EXAMPLE . 3 ) 1911 637 2. If the last two figures in any number of digits be divisible by 4 , the whole is divisible by 4 EXAMPLE . 4 ) 769124 192281 Because , when the two last figures ...
... digits will be divisible by 3 without a remainder . EXAMPLE . 3 ) 1911 637 2. If the last two figures in any number of digits be divisible by 4 , the whole is divisible by 4 EXAMPLE . 4 ) 769124 192281 Because , when the two last figures ...
Σελίδα 3
... figures of any number of digits be divisible by 8 , the whole is divisible by 8 . Because , when three figures are taken away , and ciphers are substituted , the sum is so many thousands ; and as a thousand can be divided by 8 , so may any ...
... figures of any number of digits be divisible by 8 , the whole is divisible by 8 . Because , when three figures are taken away , and ciphers are substituted , the sum is so many thousands ; and as a thousand can be divided by 8 , so may any ...
Σελίδα 4
... figure produces even : hence , the last right hand figure being even , may again be divided by 2 , and this makes good the proposition , that when the sum of any number of digits is divisible by 9 , and it ends with an even figure , the ...
... figure produces even : hence , the last right hand figure being even , may again be divided by 2 , and this makes good the proposition , that when the sum of any number of digits is divisible by 9 , and it ends with an even figure , the ...
Σελίδα 5
... number 125 is contained in the last 3 figures of each sum , then multiply the remain- ing figures by 8 , observing to carry the number of one hundred and twenty - fives in those figures , and it will give the quotient . 3,678,125 8 ...
... number 125 is contained in the last 3 figures of each sum , then multiply the remain- ing figures by 8 , observing to carry the number of one hundred and twenty - fives in those figures , and it will give the quotient . 3,678,125 8 ...
Σελίδα 6
... number of compound fractions constitute only one fraction , which is called a single fraction when their terms are ... figures in any one of the terms will cancel one or more figures in the other , especially where the figures are not ...
... number of compound fractions constitute only one fraction , which is called a single fraction when their terms are ... figures in any one of the terms will cancel one or more figures in the other , especially where the figures are not ...
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12 per cent acres aliquot annexed annum answered mentally barley corns brought to farthings ciphers compound interest consequently cost price cube root deducted denominator difference dividend DIVISIONAL PROCESSES divisor doubling the right drams dwts ell English equal figure and fraction find the product find the value gain per cent gallons given number grains highest number hundreds last right hand left hand figure lowest terms mental calculation minutes multiplicand Multiply the given namely number of digits number of farthings number of figures number of months number of pounds number of shillings numeration table observe the following ounces pounds sterling principal put proceed put to interest quantity quotient rate per cent reader reduce remainder right hand figure selling price shews shillings and pence subtract Suppose tenpences three figures three left hand three right hand tons troy vulgar fraction weeks whole number yard cost yards of cloth
Δημοφιλή αποσπάσματα
Σελίδα 161 - Time, in advance, behind him hides his wings, And seems to creep, decrepit with his age ; Behold him, when past by ; what then is seen, But his broad pinions swifter than the winds ? And all mankind, in contradiction strong, Rueful, aghast ! cry out on his career.
Σελίδα 21 - Divide the numerator of the dividend by the numerator of the divisor.
Σελίδα 135 - If the price be an even number of shillings under 20 — multiply the quantity by half the number, doubling the first figure of the product for shillings, and the rest will be pounds.
Σελίδα 1 - ... and is called the denominator. The number above the line is called the numerator, because by it we enumerate, or express the number of parts taken.
Σελίδα 18 - Hence the BANK RULE. Multiply the principal by the number of days, and divide by 6000 ; the quotient will be the interest at 6 per cent. For any other rate than 6 per cent., compute the interest in the same manner, and add or subtract such part as may be required. For 4 per cent. subtract j ; for 4i per cent. subtract J ; for 5 per cent. subtract J ; for 7 per cent. add...
Σελίδα 153 - How often will the wheel of a coach, that is 17 feet in circumference, turn in 100 miles? Ans.
Σελίδα 31 - Cambric, which cost me 90/ but some Damage having happened to it, I am willing to lose...
Σελίδα 12 - RULE. Reduce the given Quantity to the lowest Name mentioned, for a Numerator ; under which put the Number of those Parts contained in an Unit of the Integer for a Denominator, then reduce the Fraaion to its lowest Terms.
Σελίδα 32 - If § of a yard cost § of a £, what will J of a yard cost? A
Σελίδα 55 - ... the amount, from which subtract the principal and the remainder will be the compound interest.