Facit C1-13 - Page 4

It takes the Facit C1-13
only ten setting Leys
and a
minimum
of auxiliary keys
to master all four
rules of
arithrnetic.
:
u
l.a
-
+
=
4
o
U'
Lta
3
4
c
3
o
u.
o
c
H
U'
-
xt
u
U
t!