Casio SF-3990 User Guide - Page 24
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Calculator Mode Press CAL to enter the Calculator Mode. I Calculation Examples Examples Operation Display a 0. 53 + 123 − 63 = 53q125 (Error) + 125. C123 + 123. w63u 113. 963 × (23 − 56) = 23w56e963u − 31779. (56 × 3 − 89) ÷ 5.2 + 63 = 56e3w89r5.2q63u 78.19230769 123456 × 741852 = 123456e741852u E 9.158608051 C 9.158608051 a 0. 2 × (−3) = 12 + 23 = 45 + 23 = 2e3;u −6. 23qq12u K + 35. 45u K + 68. 7 − 5.6 = 2 − 5.6 = 5.6ww7u K − 2u K − 1.4 − 3.6 2.3 × 12 = 4.5 × 12 = 12ee2.3u K × 4.5u K × 27.6 54. 45 ÷ 9.6 = 78 ÷ 9.6 = 9.6rr45u K ÷ 78u K ÷ 4.6875 8.125 12% of 1500 1500e12t 180. Percentage of 660 against 880 660r880t 75. 15% add-on of 2500 25% discount of 3500 2500e15tq 3500e25tw 2875. 2625. E-22
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E-22
Calculator Mode
Press
CAL
to enter the Calculator Mode.
■
Calculation Examples
Examples
Operation
Display
a
0.
53
+
123
−
63
=
53
q
125 (Error)
+
125.
C
123
+
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
a
0.
2
×
(
−
3)
=
2
e
3
;
u
−
6.
12
+
23
=
23
qq
12
u
K
+
35.
45
+
23
=
45
u
K
+
68.
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
660
r
880
t
75.
against 880
15% add-on of 2500
2500
e
15
tq
2875.
25% discount of 3500
3500
e
25
tw
2625.