A New System of Mental Arithmetic ...Author, and published, 1837 - 173 σελίδες |
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Σελίδα 59
... above mentally , omit the millions ; and take the difference between 11 and 15 , which is 4 ; therefore of 100 , or 36 , is the gain per cent . And 36 ÷÷ 49 , the gain per cent . yearly . EXAMPLES . If a yard of cloth is bought for 59.
... above mentally , omit the millions ; and take the difference between 11 and 15 , which is 4 ; therefore of 100 , or 36 , is the gain per cent . And 36 ÷÷ 49 , the gain per cent . yearly . EXAMPLES . If a yard of cloth is bought for 59.
Σελίδα 103
... millions Millions Hundreds of thousands Tens of thousands Thousands Hundreds Tens Units 9 8 7 6 5 4 3 2 1 In the above table the figures shew how many digits must be taken to express thousands , tens of thousands , & c . Thus , if asked ...
... millions Millions Hundreds of thousands Tens of thousands Thousands Hundreds Tens Units 9 8 7 6 5 4 3 2 1 In the above table the figures shew how many digits must be taken to express thousands , tens of thousands , & c . Thus , if asked ...
Σελίδα 104
... millions ; and , immediately it is easily imagined , as if in plain legible figures , with a comma on the right of ... millions , namely , hundreds of thousands of millions ; add six figures more , and we have the highest number of ...
... millions ; and , immediately it is easily imagined , as if in plain legible figures , with a comma on the right of ... millions , namely , hundreds of thousands of millions ; add six figures more , and we have the highest number of ...
Σελίδα 105
... millions , thus , number 1 period of both sides is finished Now for number 2 points ; look to the right hand period of number 3 of the sum to be deducted , which is found to be less than the left hand figure of number 3 , on the ...
... millions , thus , number 1 period of both sides is finished Now for number 2 points ; look to the right hand period of number 3 of the sum to be deducted , which is found to be less than the left hand figure of number 3 , on the ...
Σελίδα 106
... millions ; and the operation will be performed thus , 6 times 19 is 114 ; the left hand figure 1 is millions ; and , consequently , the answer is 1,140,480 . And in this manner you may proceed to find , in a moment , the barley corns to ...
... millions ; and the operation will be performed thus , 6 times 19 is 114 ; the left hand figure 1 is millions ; and , consequently , the answer is 1,140,480 . And in this manner you may proceed to find , in a moment , the barley corns to ...
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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.