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17)
KEY OPERATION
AND
COUNTER
Problem
Power Switch ON
Multiplication
and Division
Instruct
F
OFF
r
Entry on keyboard
m
[I]
[IJ
Touch
~
CD
I!I
I
Printer
o .
2
•
3
•
4 •
•
5
C
x
=
Counter
0
0
0
0
0
Addition
,
Subtraction
and Equal
Addition
CD
m
0
(I]
B
= =
1m
m
II
I
o .
o
.
I •
2 •
3
•
4
•
2 •
C
+B
+
-
x
=
+
0
I
2
3
3
3
4
Subtotal
Total
Mean Value
Calculation
am
(5-line Feed)
II
=
t3
CD
m
I!I
I
I
I •
5 •
6
•
6
•
5
•
5
•
• 2
<>
-+
*
N
=
4
5
5
5
5
5
5
Clear
B
o .
C
5
Percentage
Calculation
I
I
l
[}J
W
m
(5 -1ine Feed)
I
m
1m
~
m
m
t3
m
I
5
•
6 •
7
•
8
•
o .
56
7 •
5
6
6·
I .
N
-~
x
%
*
-*
N
,
I
5
I
I
I
I
I
I
I
-
19
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