Casio FX-991CW Scientific Calculator
225/9440£28.00
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About this product
The Casio FX-991CW is the new upgraded version of the FX-991EX (Casio's most advanced scientific calculator), containing additional features to include a high definition display and improved menu navigation. Approved for Key stages 3,4 and 5, recommended for Advanced GCSE, A/AS Levels and Highers. Allowed in every exam where a calculator can be used.
Improved functionality and features, high definition 4 gradation display. More intuative to use with new use interface for easy navigation. It perform Mathematical Operation such as Square root, fractions, integration, complex functions, matrices, linear equations, polynomial equations.
- Suitable for 11+.
- LCD display.
- 9 variable memories.
- Non-stick keys.
- 16 + 10 + 2 -digit display.
- Auto shut-off.
- 540 functions.
- Recurring decimals.
- Prime factorisation.
- Algebraic logic.
- Regression analysis.
- Statistical functions.
- Hyperbolic.
- 24 levels of parenthesis.
- Metric.
- Dual power source - Solar Power with battery back up.
General information:
- Batteries required 1 x LR44 (included) .
- Manufacturer's 3 year guarantee.
- EAN: 4549526615597.
4.7
75 reviews
90%
Recommended this product
Customers Say
Overall, users appreciate the calculator for its reliability, features, and value for money, especially for A-level and GCSE studies. However, some mention usability issues and concerns about the quality of certain functions.
An AI generated summary based on recent customer reviews
Each review is verified as authentic by our independent third party and we only publish reviews from customers or Argos Testers who have purchased or used the item. Customers are incentivised to submit product reviews as part of a prize draw.
Great calculator
Bought this for my son who is studying for his Maths “A” Level, and he is very pleased with it.
Bazz, 65 or over, Leeds
Amazingly Pracica
It got me through my a levels definite recommendation if you’re doing a levels most especially chemistry and maths :)
Momin, 18 - 24, Ilford
Very small only for heating small plates
I bought this 2 weeks ago I did return it next day to regent Rd retail salford they refused to accept my specificaction saying its been used but I put big cup of milk to heat it but I its won't fit spell few drops I cleaned it but they won't listen now I am stock with microwave wich not practical.
Yahtaxi, 55 - 64, Salford
Great
Great, nice item, works as it should
Bob, 18 - 24
Good price and quality
Recommended by school for further maths and maths A level so bought for children. Argos cheaper than Amazon and other retailers
Holland daze, 45 - 54, Belfast
Good a-level calculator
I bought this 2 weeks ago and it does the job
Josh, 18 - 24, South Yorkshire
Reliable product
I bought this item for college a month ago. It is reliable and good quality. It was a good price and looking forward to this item lasting a long time.
Humdum, 18 - 24, Oldham
Amazing service for the price
I really like this calculator it’s in a great value for the price plus the quick click and collect service was amazing
Eman2025, 18 - 24, Bolton
Mrs
I bought these calculator a month ago. Good quality. I am happy with this purchase.
Olha, 45 - 54, DURHAM
Great calculator
Bought this calculator for my son who has just started A-level Maths. He is very happy with it.
dee, 45 - 54, London
Hello James.
After contacting our suppliers they have advised for the Casio FX-991CW Scientific Calculator.
The fx-83ES is specifically made for Spain therefore exam mode and language can't be changed.
As for functionality, I am unable to advise as it's down to personal preferences and requirements.
Thank you for using Q&A.
It comes with a clip on case, well more of a cover. It does the same job but its cheap feeling.
Hi Izzy,
This does not include a case.
Thanks for using Q&A.
The EX was a FAR better built calculator, it has identical functions but the CW is predominantly menu driven as opposed to the more user friendly EX. The ONLY extra on the CW is a simulated dice roll function that is pointless. The CW is less user friendly as a result
Dont buy an EX now however because it will probably be fake, Casio changed the layout and function of the CW significantly to set it apart from other, shall we say more economical, brands, in order to make forgery more difficult.
Hello Indo,
I can advise the following for the Casio FX-991CW Scientific Calculator:
The Casio fx-991 CW is the new upgraded version of the Casio fx-991 EX (Casio’s most advanced scientific calculator), containing additional features, to include a high-definition display and improved menu navigation. Approved for Key stages 3, 4 and 5, recommended for Advanced GCSE, A/AS level and Highers. Allowed in every UK exam where a calculator can be used.
Thanks for using Q&A.
The small print
*Prices correct as displayed but are subject to change.
The customer and brand answers you’ll see above are submitted independently. As we don’t review these answers, we can’t take responsibility for anything they may say. The responses from Argos colleagues are accurate at the time of publishing. For the latest info, you should check the product page.