538 Calculations for the Courfe ‘ Exchange. [Sup. 
As proof of the above, reduce the anfwer into half-ftivers, and divide by the ex- 


change reduced to groots ; viz. . . 
;  ftiv. dens. 
38s. 7d. by 12, is 463 for the divifor G. 3113 13 8 
20 or20 
62273 
40 
463)2490940(5380 fhillings by 20, is £269 ft. 
330 ued | 
1759 
1389 
3704 
3704 
1@) 
es 
Although there are only 16 deniers to a fiver, it will leffen the fraétions to work 
by 20 0r 40, in which cafe ro or zo ftands for-8 deniers only. © 
PRINCIPAL AXIOMS. 
Multiplying the fhillings Flemifn by 3, 
fhows the number of guilders in 11. rol. 
and roo}. for every groat add half a fti- 
ver for 11.3 5 ftivers for rol.; and so 
flivers for 100l.; but when tt ‘amounts to 
4 groots, add one to the multiplier, to 8 
add 2, and for half a groot, half the afore- 
faid ftivers. 
The fame operation fhews the number 
of marks and fchillings in 1}. @l. and 
$ol.; dividing for 11. by 8 inftead of 10, 
as for the guilders. 
Multiplying the thillings Fiemifh by 
he number of marks, in any given 
number of pounds fterling, is a fourth 
more than the number of guilders. 
To find how much fterling money 
there is in any given number of guilders 
or marks, reduce the guilders to half- 
ftivers by 40, and the marks by 32, 
there being the fame number of half- 
ftivers in 6 guilders by 40, as in 73 marks 
by 323; in both cafes divide by the ex- 
change reduced to groots, viz. 38 7 by 
12, is 463, if the exchange is done at 
half-groots, then the multipliers and di- 
' vifors muft be doubled. 
6, as before directed by 3, will produce 
21, 20]. or 2001.5 by 9, will produce3l. &c. 
TABLE sHOWING THE NuMBER OF GUILDERS IN 100 POUNDS STERLING. 
€ 
~ 



% af a BS Ht aes wah 2) 2 
a fe bo} bot 
ale S| 5 ee 
S| S| Por rol. | S| 3 |For rool. ft.}c 3 {For rool. ft.) 
m4 * * = 
Le a 3| 2 A\ 3 | 
a 102 {1020 33] 114 11140 139/11 j1170! 
i Ta22 . £0 I 1142 10 I} )-~}EE72 20 
2 1025 2 L145 1175 
3 1027 10 3 247 10 Fs aN Wo eS oS 
4 41 103 {1©30 Al Irs {1150 4| 118 {1180 
 s 1032 10 5 i152 10 5 1182 10 
a ; 1035 6 1155 6 1185. 
4 1037 190 7 1 55 elie Xe) i -Vizez. x0 
Sf 104} 1040 8| 116 jr160 81 119 {1190 
= 9 1042 10 9 1162 10 9 1192 120 
10 FO45 10} T165 10 1195 
i LOn7 . tO ON ITs 1167 10 {II 1197 10 
Thirty 
