Casio SF-4990, Руководство пользователя

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PART 5 Calculator Functions
E
72
To perform calculations
a
0.
53 + 123
−
63 = 53
q
123
w
63
u
113.
963
×
(23
−
56)
=
23
w
56
e
963
u −
31779.
(56
×
3
−
89)
÷
5.2
+
63
=
56
e
3
w
89
r
5.2
q
63
u
78.19230769
123456
×
741852
=
123456
e
741852
u
E 9.158608051
C
9.158608051
2
×
(
−
3)
=
2
e
3
e u
−
6
12
+
23
=
23
qq
12
u
K + 35.
45
+
23
=
45
u
K
+
68.
78
+
23
=
78
u
K + 101.
7
−
5.6
=
5.6
ww
7
u
K
−
1.4
2
−
5.6
=
2
u
K
− −
3.6
2.3
×
12
=
12
ee
2.3
u
K × 27.6
4.5
×
12
=
4.5
u
K
×
54.
45
÷
9.6
=
9.6
rr
45
u
K
÷
4.6875
78
÷
9.6
=
78
u
K ÷ 8.125
12% of 1500
1500
e
12
t
180.
Percentage of 660 against 880
660
r
880
t
75.
15% add-on of 2500
2500
e
15
tq
2875.
25% discount of 3500
3500
e
25
tw
2625.
480
q
25
t
640.
w
160.
100
w
80
t
25.
80
×
9
=
720
{
80
e
9
|
M 720.
(
−
) 50
×
6
=
300 50
e
6
}
M 300.
(
+
) 20
×
3
=
60 20
e
3
|
M 60.
480
\
M 480.
What will the selling price and
profit be when the purchasing
price of an item is $480 and
the profit rate to the selling
price is 25%?
If you made $80 last week and
$100 this week, what is
the percent increase?