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Casio Casio FX991CW ClassWiz Advanced Scientific Calculator - Black

Casio FX991CW ClassWiz Advanced Scientific Calculator - Black

Brand Casio
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Delivery: Standard (Free) | Sat 4th - Mon 6th Jul

Sold by: Tronix-UK, there are 5 other sellers

Returns: 30 days

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Most Popular in Calculators

Description & Details

Summary

  • New upgraded version of the Casio fx-991 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
  • Clip-on on protective hard cover included, 540+ functions
  • Dual powered, solar with battery backup and Auto power-off.
  • Graphing Capability, ‎1 LR44 batteries required.

Casio FX991CW ClassWiz Advanced Scientific Calculator - Black Description

Casio FX991CW ClassWiz Advanced Scientific Calculator - Black

Description

The Casio fx-991 CW is Casio's most advanced scientific calculator with 540 + mathematical functions. The large Natural Textbook Display shows mathematical expressions like roots and fractions as they appear in your textbooks which increases comprehension because results are easier to understand.

Product Tags

Black

Details

OPC PBPN9YH
Brand
Codes 4549526615597 (EAN)
Rank #2 Office Machines
#2 Calculators
#7 Office Supplies
Links Casio Calculators

Product Images

Casio Casio FX991CW ClassWiz Advanced Scientific Calculator - Black 1
Casio Casio FX991CW ClassWiz Advanced Scientific Calculator - Black 2
Casio Casio FX991CW ClassWiz Advanced Scientific Calculator - Black

Detailed Product Information

ColourBlack
Weight196g
Height23.00cm
Length14.20cm
Width2.50cm
External product information

Disclaimer: The information below is provided by various external sources and should be used as a guide only.

ClassWiz CW Series is designed teaching and studying for today. Its brand-new approachable UI and various features encourage students’ math learning.

Enjoy math learning with ClassWiz CW series!

Intuitive, approachable new design

High-definition & 4-gradation display
With the 4-gradation display, the current input location is displayed in a darker color.

Intuitive cursor operation
Simple cursor-based operations and a key layout that follows the natural flow of use.

Natural Textbook Display

List display function for thorough, speedy learning

Intuitive, easy-to-learn icon display

High-speed calculation
Fast calculation for smooth performance in class or during examinations.

Packed with features to encourage learning

Calculator Apps
Easily select a calculator app from the Home screen that is suitable for the type of calculation that you want to perform.

Spreadsheet
Useful for learning statistics, recursive formulas, and more.
Handles up to 5 columns x 45 rows (maximum of 170 data items).

Math Box
The following functions to support math learning: Dice Roll and Coin Toss for probability simulations.

Calculate
General calculations.

Statistics
Statistical and regression calculations.

Table
Generates a number table based on one or two functions.

Equation
Simultaneous equations, higher-order equations, and Solver (function to find the value of any variable contained in an input equation).

Online visualization service using QR codes
Easily generate QR codes of equations input into the calculator. Graphs and other graphics can be displayed on smartphones or tablets.

Variety of functions that are available in calculator apps to support students’ learning.

CATALOG
The CATALOG menu shows Store values to variables categories of commands, functions, and symbols according to the calculator app that you are currently using and the current status of the app (the displayed screen or current settings).

FUNCTION
You can store functions in both the f(x) and g(x) memory.

VARIABLE
You can store values to variables and use the variables in calculations.

Alternative names:

  • Casio FX-991CW calculator Pocket Scientific Black

Detailed Product Information

Design

TypeScientific
Form factorPocket
Product colourBlack
Control typeButtons
CoverYes

Weight & dimensions

Weight95 g
Height162 mm
Width77 mm
Depth107 mm

Power

Battery typeLR44
Power sourceBattery

Display

Digits12 digits
Display tiltingNo
Display typeDot-matrix

Performance

Symbolic notationFraction, Pi, Square root
Conversion betweenDecimal, Fraction, Percent
Random number/integer generatorYes
Negation keyYes
Convert angles from degrees toGradian, Radian

Compare Sellers for Casio FX991CW ClassWiz Advanced Scientific Calculator - Black

  • New from £22.91
Seller Ratings Warranty Returns Price Delivery Total Quantity
(338 reviews)
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30 Days
Free Returns No
£24.00
+Fast & Free Delivery
Est. Delivery: 4th-6th Jul
£24.00
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(233 reviews)
1 month
30 Days
Free Returns No
£22.91
+Fast & Free Delivery
Est. Delivery: 4th-6th Jul
£22.91
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(190 reviews)
12 months
30 Days
Free Returns No
£26.99
+£3.50 Delivery
Est. Delivery: 7th-8th Jul
£30.49
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(132 reviews)
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30 Days
Free Returns No
£31.20
+Fast & Free Delivery
Est. Delivery: 4th-6th Jul
£31.20
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(618 reviews)
-
30 Days
Free Returns No
£38.25
+Free Delivery
Est. Delivery: 14th-16th Jul
£38.25
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(944 reviews)
1 month
30 Days
Free Returns Yes
£41.16
+Fast & Free Delivery
Est. Delivery: 7th-8th Jul
£41.16
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Reviews of Casio FX991CW ClassWiz Advanced Scientific Calculator - Black

All OnBuy Reviews are Verified Reviews

Overall Rating:
5
9 Reviews
4
2 Reviews
3
0 Reviews
2
0 Reviews
1
0 Reviews
Highest Rated Review
5/5
N. Lin
Posted 08/02/2026
Sold By Tronix-UK
Very happy and quick shipping for my calculator
Filter Reviews
5/5
N. Lin
Reviewed from OnBuy GB
Posted 08/02/2026
Sold By Tronix-UK
Very happy and quick shipping for my calculator
5/5
N. KABIR
Reviewed from OnBuy GB
Posted 26/10/2025
My son is very happy with this product as he needs it for A-level maths. We checked with Casio, and found it to be a genuine Casio product.
5/5
G. Malik
Reviewed from OnBuy GB
Posted 19/08/2025
Sturdy case, should stand up to school life with teenage use!
5/5
A. Bowden
Reviewed from OnBuy GB
Posted 07/08/2025
Excellent price fast delivery regularly shop on OnBuy and have recommended to colleagues and family
4/5
J. Choy
Reviewed from OnBuy GB
Posted 02/04/2025
happy to buy it with a cheaper price. Good quality.
5/5
S. Wrigglesworth
Reviewed from OnBuy GB
Posted 28/09/2024
My son asked for this specific calculator, it looks sturdy and has so many functions I wouldn’t know where to start. This was recommended by his Maths tutor and he is very happy with the purchase.
5/5
J. Chan
Reviewed from OnBuy GB
Posted 25/09/2024
I bought this for my son and he loves it and told me that it has lots of cool functions.
4/5
P. Modessa
Reviewed from OnBuy GB
Posted 23/09/2024
This scientific calculator was recommended by my sons school for A level maths. It arrived very quickly and has a large screen
5/5
P. Harrison
Reviewed from OnBuy GB
Posted 20/09/2024
Needed to get this calculator for daughter at college, at short notice. A handful of sites had it but onbuy once again was best price and more important, able to deliver on time. Happy daughter = happy dad.
5/5
K. Parsons
Reviewed from OnBuy GB
Posted 15/09/2024
My son has taken A level maths and needed this for his course. I compared price to lots of others and it was the best price and fastest to post. Arrived in a couple of days. Thank you.
5/5
J. West
Reviewed from OnBuy GB
Posted 29/03/2024
Great quick postage ,and product is super,my daughter needed it for her advanced GCSE Maths , the price is so much cheaper that other places. Thank you we are very pleased

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