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13
6
.
CALCULATIONS
A. BASIC CALCULATION
S
1.
Addition and subtraction
Ex. 123
+
456
-
789
- -
210
@l
1231±l4568 7898
-
L I
--,2
"
10
, ,,.
_ _
_
2
.
Multiplication
and division
Ex.
123
x
456
:
(
789
)-
71.
087452
@l 123814561±l789@38
-
1
71. 087452
3. Repeated
and constant calculation
Ex.
12
+
56
-
68 34
+56
-
90
-I
68.
348
1
90.
Ex.
I' Z '
x
2
6.2831852
1Z'
X
3
9.
4247778
-
1
6.2831 852
- I
9.4247778
In
repealed addition
(subtraction),
register
the
addend
(5Ubtrah
cnd) as a constant.
In
COnSlln!
multipU
cation
(division)
,
regiUCr
the
multiplicand (deyisor)
as a
constant.
1
1
E,.
3
7(-
6
)~-
0.5
12
7(-
6
)~-
2
5
+
2
=
2.
5
8
+
2
=
4
@l3l±)6@38
~~-~
0 '
:
5
~~~
128
-
2.
2§j58
2.
5
88
4.
Usc§kcy to exchange
conSlant
factor.
4
.
Power
calculation
@l3818
8
818
5
.
Reciprocal
calculation
Ex.
8
-
0 32
a
X
2
+
19
-
'
6
.
Conversion calculation
-·
1
-I
-I
9.
27.
729.
Ex.
Convert
IT
34' 5S""
into
decima
l
degrees
- I
12.582222
Accordingly
, 12.5822220
is
obtained
14
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