Cobb's Explanatory Arithmetick, Number Two: Containing the Compound Rules and All that is Necessary of Every Other Rule in Arithmetic for Practical Purposes ... to which is Annexed a Practical System of Book-keeping |
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Page 10
... sum , or are compounded , the work- ing of figures thus employed , is called ... sums of the largest amount , by making yourself acquainted with the principles ... given for the con- venient calculation of quantities , when represented in ...
... sum , or are compounded , the work- ing of figures thus employed , is called ... sums of the largest amount , by making yourself acquainted with the principles ... given for the con- venient calculation of quantities , when represented in ...
Page 88
... given sun , by the number that remained , and add this product to the last product , or the sum produced by the two factors , and their sum will be the answer . EXAMPLES For Theoretical Exercise on a State . 1. A drover bought 38 cows ...
... given sun , by the number that remained , and add this product to the last product , or the sum produced by the two factors , and their sum will be the answer . EXAMPLES For Theoretical Exercise on a State . 1. A drover bought 38 cows ...
Page 115
... given sum . 12 You must first reduce 13s . 4d . to pence , for a numera- tor , by multiplying the 13 by 12 , and adding in the 4 pence , because pence is the lowest 160 denomination mentioned in the given sum , 13s . 4d . You must then ...
... given sum . 12 You must first reduce 13s . 4d . to pence , for a numera- tor , by multiplying the 13 by 12 , and adding in the 4 pence , because pence is the lowest 160 denomination mentioned in the given sum , 13s . 4d . You must then ...
Page 120
... given fractions . 2. Reduce 2 , 3 , and 5 of 11 to equivalent fractions ... sum . RULE . Q. How do you add Vulgar Fractions ? A. Compound fractions must ... sum of the numerators written over the common 120 EXPLANATORY ARITHMETICK ...
... given fractions . 2. Reduce 2 , 3 , and 5 of 11 to equivalent fractions ... sum . RULE . Q. How do you add Vulgar Fractions ? A. Compound fractions must ... sum of the numerators written over the common 120 EXPLANATORY ARITHMETICK ...
Page 125
... given sum . RULE . Q. How do you divide Vulgar Fractions ? A. The fractions must be prepared as in Multi- plication ; then the divisor must be inverted , and you must proceed as in Multiplication , and the products will be the quotient ...
... given sum . RULE . Q. How do you divide Vulgar Fractions ? A. The fractions must be prepared as in Multi- plication ; then the divisor must be inverted , and you must proceed as in Multiplication , and the products will be the quotient ...
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Cobb's Explantory Arithmetick, Number Two: Containing the Compound Rules ... Lyman Cobb No preview available - 2017 |
Common terms and phrases
Arithmetick borrow bushels carry the quotient cents and five cipher column of cents column of days column of pounds Compound Addition Compound Interest Compound Substraction cost cube root currency dimes divide the amount dividend divisor dollars drachms DRY MEASURE equal EXAMPLES For Theoretical EXPLANATIONS farthings federal money figures five mills four gain gallon given number given sum higher denomination hogshead hundred-weight hundredths improper fraction inches integer left hand lower line lowest denomination MEASURE merator merchant bought miles moidores multiply nett weight ounces payment pence pints present worth quantity quarts quires Reduce remainder right hand denomination Rule of Three s. d. qr shillings Simple Division Simple Substraction Slate sold square root substract the lower tare TARE AND TRET tenths Theoretical Exercise third term thousandths Three Direct tion tret TROY WEIGHT upper line Vulgar Fractions wheat whole amount whole numbers
Popular passages
Page 160 - Compute the interest to the time of the first payment ; if that be one year or more from the time the interest commenced, add it to the principal, and deduct the payment from the sum total. If there, be after payments made, compute the interest on the balance due to the next payment, and then deduct the payment as above; and, in like manner, from one payment to another, till all the payments are absorbed ; provided the time between one payment and another be one year or more.
Page 160 - 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 154 - ... 3d. If there be parts of a year, as months and days, work for the months by the aliquot parts of a year...
Page 13 - LIQUID MEASURE 4 gills (gi.) = 1 pint (pt.) 2 pints = 1 quart (qt...
Page 212 - Separate the given number into periods of three figures each, by putting a point over the unit figure, and every third figure beyond the place of units. 2. Find the greatest cube in the left hand period, and put its root in the quotient. 3.
Page 117 - Operations with Fractions A) To change a mixed number to an improper fraction, simply multiply the whole number by the denominator of the fraction and add the numerator. This product becomes the numerator of the result and the denominator remains the same, eg, 2 (5x3) + 2 15 + 2 17 3" 3 3 " 3 To change an improper fraction to a mixed number, simply divide the numerator by the denominator.
Page 132 - Multiply as in whole numbers, and point off as many figures for decimals, in the product, as there are decimals in the multiplicand and multiplier. If there be not so many figures in the product as there are decimal places in the multiplicand and multiplier, supply the deficiency by prefixing ciphers.
Page 168 - Multiply the second and third terms together, and divide their product by the first term; and the quotient will be the answer...
Page 174 - Multiply the first and second terms together, and divide the product by the third ; the quotient will be the answer in the same denomination as the middle term was reduced into.
Page 11 - Scale: 4 farthings (far.) = 1 penny (d.); 12 pence = 1 shilling (s.) ; 20 shillings — 1 pound (£). 156.