Cocker's Arithmetick: being a plain and familiar method suitable to the meanest capacity, for the full understanding of that incomparable art, as it is now taught by the ablest school-masters in city and country ... / By Edward Cocker, late practicioner [!] in the arts of writing, artihmetick, and engraving. Being that so long since promised to the world. Perused and published by John Hawkins, writing-master near St. George's church in Southwark, by the author's correct copy, and recommended to the world by many eminent mathematicians and writing-masters in and near London.

Edward Cocker

Date:: 1697

Credit: Cocker's Arithmetick: being a plain and familiar method suitable to the meanest capacity, for the full understanding of that incomparable art, as it is now taught by the ablest school-masters in city and country ... / By Edward Cocker, late practicioner [!] in the arts of writing, artihmetick, and engraving. Being that so long since promised to the world. Perused and published by John Hawkins, writing-master near St. George's church in Southwark, by the author's correct copy, and recommended to the world by many eminent mathematicians and writing-masters in and near London. Source: Wellcome Collection.

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17. When the given price of the Integer is fhillingg) and pence, and you cannot readily divide them accorr):,,. ding to the laft Rule, then muleiply the given number}; whofe value you feek by the number of fhillings ini) ..,; the price of the Integer, and then for the pence) work by the 8¢b Rule foregoing, then add the Numo| bers together, and their Sum ts the value foughe igi fhillings 5 as for Example, what is the value of 302 ydgs| at 6s. od. per yard. Here 6s. 9 a. cannot be maddil | , any even part, nor indeed can it be divided into even)| | parts of a pound, wherefore I multiply the givers, number ef yards 392 by 6, for the 6s. the produéf),’”. is 2352 thillings, then for the 9 d. I divide it into 6 aal) and 34. and work for them by the 8th Rule foree)' going, amd at laft add the fhillings together, they) | make 2646 $s. and by the 3 Rule they are reduceei| | ' to132/, 65. the value of 392 yds at 6s, gd. per yardal | Seer he work following, ~ kps us a, | 392 Mf Gummy ; RS SE, Se | 2352 | +1 196 1} 38 264]6 | 11321. 6 S. facit - Other Examples follow. Bae ae 5. a. 5. [ells Se Ge 480 at 4——~10 732 af 12——9 SEER Gapcepesonny wn heneenneee T2 ee 411920 + | 8784 x1 240 tee z{ 160 183 ee ES reser 232]0 9211 | 116 1, facit. | 460 (, YS: facit. 18. Whensl : | :

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