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10
Division
check
Ex.4-2 300
+
(dividend)
5 :60(to
be
checked)
(
di
vi
sor)
Operati
on
R
esul
ts
Note
1
2
4
5
o
@
@
a:l
L:J
60
60
R
q
300
(
quoti
ent
)
Tabulation
dial
(divisor)
@
lamp
on
[il
tamp
oÍf
(dividend)
5.
Rounding
off
(Multiplication and Division)
:k
Capacity: Same
as for Multiplicatlon and
Division
Ex.5-1
Rounding
off to
the 5th
decimal place(Multiplicationr0.l4 285 X
7:0.99995
Steps:
Operation
R
esul
ts
Note
1
2
+
5
Red l1
E
E
7
(=
I 4285
0
Round
off
dial
0
1
4285
0
lxJlamp
on
7
1.0000
I
tamp offirounded
off)
Ex.5
2
R
ounding
off to
the 5th
decimal
placeiDivision'5.9:0.55555
S
teps:
Operation
Resu ts
1
Red
3
-
i:-"c
oÍf
drar
2a:
z-
i
3
i
:
33-rcr
l-
i4g3
i-
i
S
=
0.5556
€
lamp
off
rounded
off
1
Note:
When
rorndi
6.
Negative multiplication and division
*
Capacity: Same
as for multiplication
and division
Ex.6-1
23X
45 X
(-67):-69345
Steps:
Operati
on
Resul
ts
Note
1
2
3
4
5
6
7
8
o
23
I
45
r=
L:J
I
67
Red
B
0
23
0
45
1035
0
67
-
69345
ïabulation
dial
@ lamp
on
@ lamp off
@
lamp
on
I
tamp
off(product),minus
la[P
gn
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