A New System of Mental Arithmetic ...Author, and published, 1837 - 173 σελίδες |
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Σελίδα 14
... shews that if two equal fractions have their terms added together , the new fraction will be equal to either . 16 2 24 3 and therefore = 16 + 2 18 2 24 + 3 27 3 For example , we say and it must be observed that when the terms of equal ...
... shews that if two equal fractions have their terms added together , the new fraction will be equal to either . 16 2 24 3 and therefore = 16 + 2 18 2 24 + 3 27 3 For example , we say and it must be observed that when the terms of equal ...
Σελίδα 21
... shews that of the farthings in the price , considered as £ ' s ster- ling , will be the answer ; viz . , £ 150 15s . Now , by a divi- sional process , the being inverted , it becomes ; and £ 150 multiplied by it will be the answer in ...
... shews that of the farthings in the price , considered as £ ' s ster- ling , will be the answer ; viz . , £ 150 15s . Now , by a divi- sional process , the being inverted , it becomes ; and £ 150 multiplied by it will be the answer in ...
Σελίδα 32
... shews that by deducting from 57 % , its part , we shall have 43 yards , which is the answer . A right understanding of the rule of three is one of the great principles of arithmetic ; it is not only necessary that the reader should ...
... shews that by deducting from 57 % , its part , we shall have 43 yards , which is the answer . A right understanding of the rule of three is one of the great principles of arithmetic ; it is not only necessary that the reader should ...
Σελίδα 34
... shews that & = . And yard cost of a £ . , or 13s , 4d . Also , the difference between and is , or to of the 19 . Hence the operation is as follows : - +9 = 13s . 4d . ( or of the above ) 1s . 4d . Answer , 14s , 8d . : - If of a cwt ...
... shews that & = . And yard cost of a £ . , or 13s , 4d . Also , the difference between and is , or to of the 19 . Hence the operation is as follows : - +9 = 13s . 4d . ( or of the above ) 1s . 4d . Answer , 14s , 8d . : - If of a cwt ...
Σελίδα 45
... shews that 21 the weight of the 21 bags is 82 cwt . 82 330 57 15 82.7 Answer , £ 387 15s What must be given for 24 bags of hops , each weighing 4cwt . 3qr . 16lb . , at £ 4 5s . per cwt . ? Answer , £ 499 1s . 5 ÷ d . What is the value ...
... shews that 21 the weight of the 21 bags is 82 cwt . 82 330 57 15 82.7 Answer , £ 387 15s What must be given for 24 bags of hops , each weighing 4cwt . 3qr . 16lb . , at £ 4 5s . per cwt . ? Answer , £ 499 1s . 5 ÷ d . What is the value ...
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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.