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File name: D48N_Chinese vision : 07/07/24
* 电源 中文
CITIZEN SDC-444S 是双重电池计算器(太阳能与电池供电)可以在
任何光线下操作。
-自动关闭电源-
如果在十分钟左右不进行任何操作计算器的电源将会自动关闭。
-电池更换-
如果需要更
换电池,打开下盖取出旧电池,将新电池放在电池槽
中。
* 按键索引 中文
[
ON
A
C
] : 开机/ 全部清除 [CE/C] : 清除输入/清除计算
[MU] : 标价/降价 [00t0] : 未位删除键
[M+] : 加法记忆键 [M–] : 法记忆键
[+ / –] : 正负号改变键 [MR] : 显示记忆内容键
[MC] : 清除记忆内容键
[MII+] [MII–] [MII
R
C
] : 第二组记忆键
A 0 2 3 4 F
小数字设定开关
– F –
0
2
3
4
– A
浮点小数模式
固定小数字元模式
加位模式 自动在加法与减法计算中加入货币小数
5/4
无条件进位/四舍五入/无条件舍去 开关
显示屏各标志之意义:
MI:第 1 组记忆:负号
MII:第 2 组记忆 E:溢位 / 错误
* 操作范例 中文
1.一般计算操作
在执行计算前,先按[
ON
A
C
]键。
范例 按键操作 显示
1 x 2 x 3 = 6
[
ON
A
C
]
1 [x] 2 [x] 3 [=]
[CE/C]
0.
6.
0.
2 x 3 = 6 2 [x] 2 [CE/C] 3[=] 6.
5/4
A 0 2 3 4 F
2 + 4 + 6 = 12 2 [+] 3 [+] 6 [CE/C] [CE/C]
2 [+] 4 [+] 6 [=]
0.
12.
1234 x 100
= 123,400
12345
[00t0]
[x] 100 [=]
1'234
123'400
5 x 3 ÷ 0.2 = 75 5 [x] 3 [÷] 0.2 [=] 75.
300 x 27% = 81 300 [x] 27 [%] 81.
56
11.2
x 100% = 20%
11.2 [÷] 56 [%] 20.
30 + (30 x 40%) = 42 30 [+] 40 [%] 42.
30 – (30 x 40%) = 18 30 [–] 40 [%] 18.
5
4
= 625 5 [x] [=] [=] [=] 625.
144
= 12
144 [
]
12.
A 0 2 3 4 F
$14.90 + $0.35 – $1.45
+ $12.05 = $25.85
1490 [+] 35 [–] 145 [+]
1205 [=] 25.85
1 / 30 = 0.0333…. 30 [÷] [=] 0.03
5/4
A 0 2 3 4 F
4) - 5 x (2
1
= 0.166….
2 [x] 5 [–] 4 [÷] [=] 0.16
2.记忆计算的操作
[
ON
A
C
]
0.
12 [x] 4 [M+] 20 [÷] 2 [M–]
MI
10.
[MR]
MI
38.
(12 x 4) – (20 ÷ 2) =
38
[MC]
[CE/C]
0.
15 [x] 2 [M+] 20 [x] 3 [M+]
MI
60.
25 [x] 4 [M+]
MI
100.
[MR]
MI
190.
10 [÷] 5 [MII+] 4 [x] 2 [MII+]
MI
MII
8.
[MII
R
C
]
MI
MII
10.
[MR]
[÷]
MI
MII
190.
[MII
R
C
]
MI
MII
10.
[=]
MI
MII
19.
5/4
A 0 2 3 4 F
15 x 2 = 30
20 x 3 = 60
25 x 4 = 100
(total A = 190)
10 ÷ 5 = 2
4 x 2 = 8
(total B = 10)
A ÷ B = 19
[
ON
A
C
]
0.
3.常数计算
2 + 3 = 5 2 [+] 3 [=] 5.00
4 + 3
= 7 4 [=] 7.00
3 x
4.111 = 12.333 3 [x] 4.111 [=] 12.34
5/4
A 0 2 3 4 F
3 x
6 = 18 6 [=] 18.00
4.超出运算容量的消除
123456789012 x 100
= 12345678901200
1234567890123
[00t0]
[x] 100 [=]
[
ON
A
C
]
E
E
123'456'789'012
12.3456789012
0.
5.标价&降价计算
200+(P x 20%)=P
P=
20% - 1
200
= 250
250–200 = 50
200 [÷] 20 [MU]
[MU]
250.
50.
5/4
A 0 2 3 4 F
125–(P x 20%)=P
P=
25% 1
125
+
= 100
125–100 = 25
125 [÷] 25 [+/–] [MU]
[MU]
100.
25.
6.差值百分比
5/4
A 0 2 3 4 F
150
150 - 180
x100% =
20%
180 [–] 150 [MU] 20.
14


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