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next number.
Prcss
lcft
han,1
sLitt
licy
H
cncc antl
tralic
a
tracli-
rvard
turn
(subtraction).
Clcar the sctting
register,
set
up thc
rcmaining
figurc 3,
attcl
makc
olre more
backward turn,
Thc
answer
to
the
cntirc
calculirtior,
is
now rcady
and appcars
in
thc
procluct
register
Subtraction below
zero
[:.xarnpLc:
57-681 34-136
:
?
Set
up
the
register.
Set
now
shows
number 57.
Give
up
58. Make
one
one forward
turn. Clc;rr thc
sctting
backward
turn. The product
register
Clear setting register and set
up
forward turn. Product
register
shows
Clear setting
register
aird set
up
Iv{akc
a
136. Give one negative
tur11.
Product register
shows
which is a
conrplcnrc,,t-
ary
number inclicating
that
the result is a
negative
nut.nbcr.
To
rc;rcl
oltf the
answer, clear
the
setting register ancl set
up
threc
nirlcs
imrnediatcly followed
by
887 (the number found
behincl
the nircs
in
the
product
register).
Turn
the
handle twice bacir*'arcl. Thc
procl:
uct
rcgister
now
shorvs
The
;ursrver
is
-113.
the next
number,
34.
w
Thc digits to
thc
lcft of
the
noughts
arc
of
uo irnportaucc.
l9
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