_M._ Well, then [*120a] wyll I adde forth of hundredes: I fynde 3 in the fyrste summe, and 6 in the seconde, whiche make 900, them do I take vp {and} set in the thyrd roume where is one hundred all redy, to whiche I put 900, and it wyll be 1000, therfore I set one cou{n}ter in the fourth lyne for them all, as you se here. -----------|-------|-------- o | | -X--o-o-o--|--o-o--|--o----- | | -----------|-------|-------- | | -----------|-------|-------- | | -----------|-------|--o----- Then adde I y^e thousandes together, whiche in the fyrst su{m}me are 8000, {and} in y^e second 2000, that maketh 10000: them do I take vp fro{m} those two places, and for them I set one counter in the fyfte lyne, and then appereth as you se, to be 11001, for so many doth amount of the addition of 8342 to 2659. ----o----- -X--o----- ---------- ---------- ----o----- [*120b] _S._ Syr, this I do perceave: but how shall I set one su{m}me to an other, not chaungynge them to a thyrde place? _M._ Marke well how I do it: I wyll adde together 65436, and 3245, whiche fyrste I set downe thus. -------------|-------------- | o -------------|--o----------- | o -X--o-o-o----|-------------- | ----o-o------|--o-o-o-o----- | ----o-o-o-o--|--o-o-o------- o | o -------------|--o----------- Then do I begynne with the smalest, which in the fyrst summe is 5, that do I take vp, and wold put to the other 5 in the seconde summe, sauynge that two counters can not be set in a voyd place of 5, but for them bothe I must set 1 in the seconde lyne, which is the place of 10, therfore I take vp the 5 of the fyrst su{m}me, {and} the 5 of the seco{n}de, and for them I set 1 in the seco{n}d lyne, [*121a] as you se here. -------------|-------------- | o -------------|--o----------- | o -X--o-o-o----|-------------- | ----o-o------|--o-o-o-o----- | ----o-o-o-o--|--o-o-o-o----- | -------------|--o----------- Then do I lyke wayes take vp the 4 counters of the fyrste su{m}me {and} seconde lyne (which make 40) and adde them to the 4 counters of the same lyne, in the second su{m}me, and it maketh 80, But as I sayde I maye not conueniently set aboue 4 cou{n}ters in one lyne, therfore to those 4 that I toke vp in the fyrst su{m}me, I take one also of the seconde su{m}me, and then haue I taken vp 50, for whiche 5 counters I sette downe one in the space ouer y^e second lyne, as here doth appere. -----------|-------------- | o -----------|--o----------- | o -X--o-o-o--|-------------- | ----o-o----|--o-o-o-o----- | o -----------|--o-o-o------- | -----------|--o-----------