background image

k

 Basic Calculations

6 ÷ 3 × 5 + 2.4 – 1 = 11.4

   

A

6

/

3

*

5

+

2.4

-

1

=

0.

0

06*

1

11.4

*

1

 

A step indicator is also on the display.

• This indicator is not shown in some of the example displays of this 

User’s Guide.

12 + 23 = 35
45 + 23 = 68

7 – 5 = 2
2 – 5 = –3

2 × 12 = 24
4 × 12 = 48

45 ÷ 9 = 5
72 ÷ 9 = 8

 23

++

12

=

 45

=

 5

--

7

=

 2

=

 12

**

2

=

 4

=

 9

//

45

=

 72

=

K

 

35.

K

 

68.

K

 

2.

K

 

–3.

K

 

24.

K

 

48.

K

 

5.

K

 

8.

'

4 × 5 = 10

  

4

9

  

*

5

=

'

  

2.

10.

200 × 5% = 10

 

200

*

5

&

%   

10.

100 + (100 × 5%) = 105

 

100

+

5

&

%

105.

100 + (100 × 5%) = 105

 

100

*

5

&+

105.

500 – (500 × 20%) = 400

 

500

-

20

&

%

400.

500 – (500 × 20%) = 400

 

500

*

20

&-

400.

30 = 60 × ?%

 

? = 50

 

30

/

60

&

%   

50.

 

8 × 9 = 72

– ) 5 × 6 = 30
 2 × 3 =    6
  

48

  

MM

8

*

9

l

  

5

*

6

m

  

2

*

3

l

  

M

M

 

72.

M

 

30.

M

 

6.

M

 

48.

  2 

+

 3 = 6

2

+

3

C

4

=

6.

  

5

+

77

+

=

12.

4

  2 

+

 7 = – 5

2

+-

7

=

– 5.

+

 77 = 12

• “E” (Error) will appear if the calculation result exceeds the upper 

calculation limit of the calculator. If this happens, press 

A

.

• The value displayed when a calculation error occurs is a rough 

approximate value. 

 

Example: If 1.23 is displayed along with “E”, it indicates a value of 

approximately 1.23 × 10

12

.

k

 Clearing  Calculations

• To clear the calculator except for independent memory, press 

A

.

• To clear independent memory only, press 

M

 twice.

k

 Reviewing a Calculation

Important!
•  Before you can review steps in Calculation Memory, you must first finalize 

the current calculation. See “

k

 Finalizing a Calculation”.

Example:  (30 + 10 – 5) × 2 ÷ 5 = 14

A

30

+

01

30.

10

-

02

40.

5

*

03

35.

2

/

04

70.

5

05

5.

=

06

14.

&

'

(

)

)

=

• Key operations are stored in Calculation Memory as you input them.

•  Each line in the above example represents one step. Calculation Memory 

can hold up to 150 steps.

To review the calculation

F
F
F
F
F
F

*

2

01

30.

REV

02

10.

REV

03

5.

REV

04

2.

REV

05

5.

REV

06

14.

REV

&

'

(

)

=

=

*

2

 

Pressing 

F

 reviews starting from the first step, while 

G

 reviews from the last 

step. Each press of 

F

 or 

G

 scrolls by one step. Holding down either key scrolls 

until you release it.

• Pressing 

C

 exits the review operation.

To edit a calculation

(30 + 10 – 5) × 2 ÷ 5 = 14 

R

 (30 – 20 – 5) × 3 ÷ 5 = 

F

c

-

  

c

F

c

20

c

F
F

c

3

c

F
F

01

30.

REV

CRT

REV

REV

CRT

REV

REV

REV

CRT

REV

REV

REV

01

30.

01

30.

02

10.

02

10.

02

20.

03

5.

04

2.

04

2.

04

3.

05

5.

06

3.

*

4

*

8

*

3

*

6

*

5

*

7

*

5

&

&

'

'

'

'

(

)

)

)

=

=

*

3

 Press 

c

 while the step you want to correct is displayed.

*

4

 The 

CRT indicator is on the display while calculation memory editing is enabled.

*

5

 You can edit values and command key operations (

+

-

*

/

).

*

6

 After you are finished making the changes you want, press 

c

 again.

*

7

 Scroll to the last step to check the new result.

*

8

 The result is always produced by the calculation. You cannot change it by 

inputting a value.

•  You can make as many changes as you want, as long as you press 

c

 once 

to start the editing operation and then once again to end the editing operation. 

Do not forget to press 

c

 to exit editing after making the changes you want.

•  If an error occurs while you are inputting a calculation or editing a calculation, all 

the steps are cleared from calculation memory and cannot be reviewed.

•  Calculation speed depends on the number of steps in calculation memory.

Manufacturer:

CASIO COMPUTER CO., LTD.

6-2, Hon-machi 1-chome, Shibuya-ku, Tokyo 151-8543, Japan
Responsible within the European Union:

Casio Europe GmbH

Casio-Platz 1, 22848 Norderstedt, Germany

www.casio-europe.com

English

• Be sure to keep all user documentation handy for future reference.

• In this User’s Guide, some key notations are shown in simplified form.

k

 Important  Precautions

• If you suspect that the calculator is operating abnormally due to static 

electrical charge or some other problem, press 

A

 to restore normal 

operation.

• Avoid dropping the calculator and otherwise subjecting it to severe 

impact.

• Never bend or twist the case.

• Never try to take the calculator apart.

• Wipe the unit with a soft, dry cloth to clean it.

• The contents of these instructions are subject to change without notice.

• CASIO COMPUTER CO., LTD. assumes no responsibility for any loss 

or claims by third parties which may arise from the use of this product.

k

 Localized Number Display

• This calculator employs the Indian system of digit grouping.

k

 About Calculation Steps

• A finalize key operation and the result it produces is also a step. See 

k

 Finalizing a Calculation” below.

• Steps continue to be accumulated in calculation memory until you 

press 

A

 or until 150 steps are accumulated, even if a finalize key is 

pressed.

• Review can be used to view only the first 150 steps in calculation 

memory, even if there are more steps.

• Review cannot be performed while an error indicator is displayed.

• Pressing 

A

 clears all steps from calculation memory and restarts the 

step count from 1.

k

 Finalizing a Calculation

Finalizing a calculation means performing a key operation that produces 

a calculation result. Pressing any of the following keys finalizes a 

calculation: 

=

&

l

m

.

k

 Power  Supply

Two-Way Power System provides power even in complete darkness.

• Always leave battery replacement up to an authorized dealer. 

• Even if you do not use the calculator, you should replace the battery at 

least once every 3 years.

• A dead battery can leak and damage the calculator if left in the battery 

compartment for long periods.

• The battery is a consumable item and it is not covered by the product 

warranty.

• The battery that comes with this unit discharges slightly during 

shipment and storage. Because of this, it may require replacement 

sooner than the normal expected battery life.

k

 Auto Power Off Function

Auto power off: Approximately 6 minutes after last key operation

• If the Auto Power Off function turns off power while Review operation 

is in progress, press 

A

=

 to restore power. Doing so returns to the 

point you were at before power turned off. 

k

 Specifications

Power Supply:  Two-Way Power System, with solar cell and one LR54 

(LR1130) button type battery

Battery Life:  Approximately 3 years (1 hour operation per day)
Operating Temperature: 0˚C to 40˚C (32˚F to104˚F)
Dimensions:  31.7 (H) × 103 (W) × 145 (D) mm  

(1

1

/

4

˝ H × 4

1

/

16

˝ W × 5

11

/

16

˝ D) 

Weight: Approximately 100 g (3.5 oz), including battery

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