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.f··
Expressions
Mixed Calculation
(3+
5)
X7=56
-
6X9
7
3+2
=-1
6
Repeat Calculation
4+4+4+4=16
10
- 2-2-
2=4
Calculation with Parentheses
((4-3
6
+
5)
X0.8-
6)X4
.2
=-
7.056
Exponential Calculation
(321
X10-
14
)
X(65X
1
0
28 )
=
2.
0865
X
10
18
Constant Addition
2+3
=
5
4+
3=
7
Constant Subtraction
1
-
2=
-1
2
-
2
=
0
Constant Multiplication
3X2:::::6
4X2=8
Constant Division
673
=
2
9
7
3=3
34
ll' ,
1
Operation
( 56 )
(
-1
6
)
16 )
In constant subtraction, the subtrahend
IS
autol)'l~tlcal
ln constant multiplication, the multiplier
ly spec1f1ed as
In
constant addition, the addend
}·
.
In constant division, the divisor
the constant.
Percentage Calculation
17%of200
200X 17
100
34
2000017
~
0
(
34.)
Percentage Calculation
4 )
~
456isx %of789
CDCD4B3.
6(±J5CD
00 08E)6[D004. 2§
(
-
7
056)
321
~14~0065~28§
(2 0865 18)
2(±)3§
5 )
4
§
7.
)
1E)2§
(
-
1
)
2
§
(
0
)
3002§
6 )
4
§
8
)
6G)3§
(
2.
)
9
§
(
3
)
_!Q§_
X
100
=
789
57
.
79467681%
Increase Ratio
lithe sales
amount for
one
month was I
20
million
and the next month
increased to 150 million,
what was the percentage
of Increase
from
one
month to the
next?
Increase
150
-120
X
1
O
Ratio
120
=
25%
456G)789~0
(
57
.
79467681)
1508120~0
(
25.)
35
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