36 ST RATIO TICOsũS.

diſter in Character, I may not adde their numbers, as in

the other, but yut them downe with the ligne as in the

Example you map behold. 14Againe, it happeneth ſometime, that albeit the Chara-

cters agree, pet the Signes differ, as in this ſecõd Example.

0 10% 4 25 1— 12 8

1 25„ 3 ff 4 8

0 Mere ſieſt 10% and iz V make 23, but bytauſe in the

next the Signes are dikerent, I muſt deduct the lelle from

1 the bigger, ſo remainethz, to the which J adde v. the

1 Signe of the greater number. Againe, the next hauing dik-

1 ferent Sig nes, I ſubtract the lelle out ol the greater, there

0 remaineth 4 ð whereto annex& being the Signe of the

0 greater. And thus the Addition appeareth to be 23 Primes

0 ＋z ſecondes 40. Here is all the ditticultie in this kinde1 to vle Subtraction, When the Signes dicker, and ſet downe

the Signe ok the greater, the which in one ſhoꝛt lentence is

N expꝛeſled by Styfelius.

9. Diuerſa Signa commutaut ſeciem, A ponit M.

ö One Example moze J thinkte gd fo adioyne, to remous

all ſcruple oꝛ doubt that map ariſe.Thele Operations con-

ferred with the Rules of Addition enſuing, are maniteſt,and nerde no further Explanation.

1 6 5 20 4 f 2 X

nn en ln„

äè—

The Rules of Addition.

If the Signes be like, ſubſcribe the ſame Signe.EH vnlike Subtract,& to the Remaine adioyne the grea-

o.

E

ter Numbers Signe.