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Casio

Q: When i use the percentage button, it calculates at a false rate. 100+10%=111.11111 that's what the calculator tells me. how do i fix this?

I also was confused when trying to subtract percentages using the % key. I have never had a calculator function like this and I have had several other Casio models. Can confirm (X x Y% +/-) will get you the correct total "10 x 10% -" will get you 9 as an answer just as "10 x 10% +" will get you 11. Annoying to have to take an extra step, whatever Casio I'm sure you have your reasons.

Q: On this calculator 50-10%=400 and 50+10%=55.55. What am I doing wrong?

To add or subtract a % from a number, using the % key, you first have to multiply the number by the %, then press + or –. Examples: To calculate 50 plus 10%, enter 50 x 10% (answer 5), then press + (answer 55). To calculate 50 minus 10%, enter 50 x 10% (answer 5), then press – (answer 45).

Q: does it have a back button

yES, IT DOES Yes, it does. The BACKSPACE (ERROR CORRECTION) KEY you're looking for is the ARROW directly to the left of the TAX- key. Each press erases the last entered digit so it can then be reentered correctly.

Q: Is this completely flat or is it curved at the top?

The display window is curved at about a 25 degree angle for ea\asy reading.

Product ID: 278467230

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Details

Brand
Casio
Colour
Grey
Calculator Type
Standard
Power source
Solar
Screen size
3.25

💰Tax & currency conversion

🔋Dual power: solar + battery

🖥️Large 8-digit display

Frequently Bought Together

Casio MS-80B Calculator – Desktop Calculator with Tax & Currency Tools | General Purpose | Large Display | Ideal for Home, Office & Everyday Math

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Description

🖤 Power your productivity with precision and style!

DESKTOP ESSENTIAL - Compact yet powerful design fits perfectly on your desk, blending utility with style.
CRYSTAL CLEAR DISPLAY - Large 8-digit screen ensures every calculation is visible at a glance, reducing errors.
SMART FINANCIAL TOOLS - Built-in tax, currency conversion, and profit margin functions streamline your budgeting.
DUAL POWER RELIABILITY - Never run out of juice with solar and battery backup—work uninterrupted anywhere.
EFFORTLESS COMMAND ACCESS - Intuitive function and command keys plus +/- and key rollover for smooth, fast input.

The Casio MS-80B is a sleek desktop calculator featuring dual solar and battery power, a large 8-digit display, and advanced financial functions including tax and currency conversion. Designed for professionals who demand accuracy and efficiency, it offers intuitive controls and reliable performance for everyday calculations.

Specifications

Number of Batteries	1 Product Specific batteries required.
Display Type	LCD
Power Source	Solar Powered
Screen Size	3.25
Calculator Type	Standard Function
Item Dimensions L x W	5.79"L x 4.06"W
Material	Plastic
Color	Brush Nickel

Have a Question? See What Others Asked

When i use the percentage button, it calculates at a false rate. 100+10%=111.11111 that's what the calculator tells me. how do i fix this?

On this calculator 50-10%=400 and 50+10%=55.55. What am I doing wrong?

does it have a back button

Is this completely flat or is it curved at the top?

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