Casio FX-991CW Scientific Calculator
225/9440£34.00
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About this product
Tackle GCSE maths to A-Level calculus with the Casio FX-991CW Scientific Calculator, the upgraded version of Casio's most advanced scientific calculator approved for Key Stages 3, 4 and 5. Designed for Advanced GCSE, A-AS Levels, and Highers, it's allowed in every exam permitting calculators, making it a reliable study companion. With 540 functions, it handles square roots, fractions, integration, complex functions, matrices, linear and polynomial equations easily, while the high-definition 4-gradation display makes numbers and symbols clearer than ever.
The improved menu and interface make this calculator intuitive, so you can find functions easily. The 16-10-2-digit display shows your work clearly, while 9 variable memories store data for complex calculations. Features like recurring decimals, prime factorisation, regression analysis, and 24 levels of parenthesis support advanced maths. Dual power uses solar energy with an LR44 battery (included) and auto shut-off. Backed by a 3-year guarantee, it delivers reliable exam performance.
- 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.
Returns
If you want us to collect an unwanted small item after delivery, it costs £3.95 or you can return it to any store for free. You won’t be charged if the item is faulty, or if it was delivered by a supplier.
4.8
104 reviews
92%
Recommended this product
Customers Say
Highly recommended scientific calculator for GCSE, A-level, and university use. Easy to use, reliable, accurate, and packed with useful features for complex calculations and exams.
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.
Amazing
This product has really met my standards, I was going to go for the model lower but decided to go for this one and it is so worth it!
kevin, 18 - 24
User friendly
I am glad I bought this in argos
Innocent, 45 - 54
Good
Does the job, good for engineering and use of complex numbers, really takes the time out of doing calculations.
ArgosPaidReviewer936191, 18 - 24
Great product
I brought the item a month ago it’s been great.
Bob28, 18 - 24
Great spec and features
Son is doing a levels and this ticks all the boxes and was a reasonable price
Ns, 45 - 54
Excellent calculator
Bought it ages ago for my daughter doing her GCSE’s it really helped her, good price for this product.
Lima20, 35 - 44
Good quality
Easy to use and good quality
Dennis Ng, 55 - 64
Great features
Great calculator for my son starting secondary school.
Bob43
Very useful
I brought this for my son for college and hes really happy with it
Tilly1, 55 - 64
Great features
The calculation are accurate and the display on the calculator is amazing aswell the functionality and memory are fantastic it has great versatility suitable for all ages
Lib, 18 - 24
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
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*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.