-------------|-------------- | o -X--o-o------|--o-o-o------- o | o ----o-o-o----|--o-o--------- o | ----o-o-o-o--|--o-o-o-o----- | o ----o-o------|--o----------- Then shall I begynne to subtracte the greatest nombres fyrste (contrary to the vse of the penne) y^t is the thousandes in this exa{m}ple: therfore I fynd amongest the thousandes 2, for which I withdrawe so many fro{m} the seconde summe (where are 8) and so remayneth there 6, as this exa{m}ple showeth. -------------+-------------- | o -+-----------+--o----------- o | o ----o-o-o----+--o-o--------- o | ----o-o-o-o--+--o-o-o-o----- | o ----o-o------+--o----------- Then do I lyke wayes with the hundredes, of whiche in the fyrste summe [*116b] I fynde 8, and is the seconde summe but 7, out of whiche I can not take 8, therfore thus muste I do: I muste loke how moche my summe dyffereth from 10, whiche I fynde here to be 2, then must I bate for my su{m}me of 800, one thousande, and set downe the excesse of hundredes, that is to saye 2, for so moche 100[0] is more then I shuld take vp. Therfore fro{m} the fyrste su{m}me I take that 800, and from the second su{m}me where are 6000, I take vp one thousande, and leue 5000; but then set I downe the 200 unto the 700 y^t are there all redye, and make them 900 thus. -------------+-------------- | o -+-----------+-------------- | o -------------+--o-o-o-o----- o | ----o-o-o-o--+--o-o-o-o----- | o ----o-o------+--o----------- Then come I to the articles of te{n}nes where in the fyrste su{m}me I fynde 90, [*117a] and in the seconde su{m}me but only 40: Now consyderyng that 90 can not be bated from 40, I loke how moche y^t 90 doth dyffer from the next summe aboue it, that is 100 (or elles whiche is all to one effecte, I loke how moch 9 doth dyffer fro{m} 10) {and} I fynd it to be 1, then in the stede of that 90, I do take from the second summe 100: but consyderynge that it is 10 to moche, I set downe 1 in y^e nexte lyne beneth for it, as you se here. ---------+------------ | o -+-------+------------ | o ---------+--o-o-o----- | o ---------+------------ | o ----o-o--+--o--------- Sauynge that here I haue set one counter in y^e space in stede of 5 in y^e nexte lyne. And thus haue I subtracted all saue two, which I must bate from the 6 in the second summe, and there wyll remayne 4, thus. ----+-------------- | o -+--+-------------- | o ----+--o-o-o------- | o ----+-------------- | ----+--o-o-o-o-----