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Contents
Preface
Tne
ieatures
of
Facit
NTK
.
The x-orking parts
of
the
machine
. .
.
The3registers...
Ciearing
the
registers
Onlr
13 setting
keys
.
Thecarriageshiftker.s.
.,...;,,..
The tabulator
..,
Calculations
are made
bv turning
the
handle
Positive
and
negative
turns
.
The
position indicator
Set
up the
figures
with your left
hand,
turn
handle
with right
.
.
ivlarking
the decimal
point
.
Care
of
the
machine
.....i
The
machine
is foolprooi
. .
.
Addition
Subraction
Multiplicat
Division
10n..
3
4
5
6
6
7
8
8
9
10
10
11
1,2
LJ
1,4
1,5
t5
1,6
t7
l
I
{
I
)
Addition
and subtraction
of
numbers consisting
of
more
than
9,
but
less
than
13
digits
.
. .
.
18
Subtracrion
below zero
,
...
19
Short-cutmultiplication...
..,.,..20
N4ultiplication
involving addition of
products
,
.
,
,
2l
Continuousrnultiplication....
....21
Divisionbymultiplication,
...,.,.22
Rule
of
three
.
.....
23
Reciprocalvalues
....24
q
l-=-
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