¶ Compositu{m} num{er}u{m} mixto si[c] m{u}ltiplicabis Vndecies tredeci{m} sic e{st} ex hiis op{er}andum In reliquu{m} p{rimu}m demu{m} duc post in eund{em} Vnu{m} post den{u}m duc in t{ri}a dei{n}de p{er} vnu{m} Multiplices{que} dem{u}m int{ra} o{mn}ia m{u}ltiplicata In su{m}ma decies q{ua}m si fu{er}it t{ibi} doces Multiplicandor{um} de normis sufficiunt h{ec}. [Sidenote: The sixth case of the craft: Composite by Composite. Mental multiplication. An example of the sixth case of the craft.] ¶ Here he puttes þe 6 rewle, & þe last of all{e} multiplicacioɳ, þe quych is þis: yf þ{o}u wel m{u}ltiplye a {com}posit by a-noþ{er} composit, þou schalt do þus. m{u}ltiplie þ{a}t on composit, qwych þ{o}u welt of the twene, by þe articul of þe toþ{er} composit, as þ{o}u wer{e} tauȝt in þe 5 rewle, þen m{u}ltiplie þ{a}t same composit, þe quych þou hast m{u}ltiplied by þe oþ{er} articul, by þe digit of þe oþ{er} composit, as þ{o}u was tauȝt in þe 4 rewle. As þus, yf þou wold wete what is 11 tymes 13, as þ{o}u was tauȝt in þe 5 rewle, & þat schal be an hundryth & ten, aft{er}warde m{u}ltiply þat same co{m}posit þ{a}t þ{o}u hast m{u}ltiplied, þe quych is a .11. And m{u}ltiplye hit be þe digit of þe oþ{er} composit, þe quych is 3, for 3 is þe digit of 13, And þat wel be 30. þen take þe digit of þat composit, þe quych composit þou m{u}ltiplied by þe digit of þ{a}t oþ{er} {com}posit, [*leaf 165a] þe quych is a 11. ¶ Also of the quych 11 on is þe digit. m{u}ltiplie þat digitt by þe digett of þat oth{er} composit, þe quych diget is 3, as þ{o}u was tauȝt in þe first rewle i{n} þe begynnyng{e} of þis craft. þe quych rewle begynn{es} “In digitu{m} cures.” And of all{e} þe m{u}ltiplicacioɳ of þe 2 digitt comys thre, for onys 3 is but 3. Now cast all{e} þese nounbers toged{ur}, the quych is þis, a hundryth & ten & 30 & 3. And al þat wel be 143. Write 3 first in þe ryght side. And cast 10 to 30, þat wol be 40. set 40 next aft{ur} towarde þe lyft side, And set aftur a hundryth as her{e} an Ensampull{e}, 143. (Cetera desunt.) FOOTNOTES (The Crafte of Nombrynge): [1: In MS, ‘awiy.’] [2: ‘ben’ repeated in MS.] [3: In MS. ‘thausandes.’] [4: Perhaps “So.”] [5: ‘hali’ marked for erasure in MS.] [6: ‘moy’ in MS.] [7: ‘Subt{ra}has a{u}t addis a dext{ri}s {ve}l medi{a}b{is}’ added on margin of MS.] [8: After ‘craft’ insert ‘the .4. what is þe p{ro}fet of þis craft.’] [9: After ‘sythes’ insert ‘& þis wordes fyue sithe & sex sythes.’] [10: ‘t’l’ marked for erasure before ‘tyl’ in MS.] [11: Here ‘of þe same rew’ is marked for erasure in MS.] [12: ‘s{ed}’ deleted in MS.] [13: 6883 in MS.] [14: ‘þen’ overwritten on ‘þat’ marked for erasure.] [15: ‘Supra’ inserted in MS. in place of ‘cifra’ marked for erasure.] [16--16: Marked for erasure in MS.] [17: 4 in MS.] [18: docet. decet MS.] [19: ‘4 times 4’ in MS.] +The Art of Nombryng.+ A TRANSLATION OF +John of Holywood’s De Arte Numerandi.+