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Item #:
206353403
Casio FX-991DE CW ClassWiz Technical Scientific Calculator and FX-CASE-CB-BK2 Protective Case for Casio Technical Scientific Calculator Black
86% of respondents would recommend this to a friend
Item #:
206353403
MWK 170407
Price Details
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The FX-991DE CW model is the most powerful technical-scientific calculator with 680+ functions, innovative operation, and natural display for an unrivaled user experience.
This bundle contains 2 items
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What Stands Out
Advanced Functionality
The Casio FX-991DE offers over 550 functions, including complex number calculations, making it ideal for students in engineering and science disciplines.
User-Friendly Display
Featuring a high-resolution natural textbook display, it presents formulas and calculations clearly, facilitating easier understanding and learning for students.
Durable Protection
The included FX-CASE-CB-BK2 protective case safeguards your calculator from damage, ensuring longevity and reliability during daily use and transport.
Product Details
| Brand Name | Casio |
| Model Name | FX - 991 DE CW |
| Calculator Type | Engineering/Scientific |
| Display Type | LCD |
| Colour | black |
| Brand | Casio |
| Item Weight | 1 lbs (450 grams) |
Who Should Buy?
-
Students
Ideal for students in high school and college needing advanced functions for math, physics, and engineering courses.
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Professionals
Great for engineers and scientists requiring reliable, versatile calculations in their daily work or research.
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Tutors
Perfect for tutors who need an efficient calculator to assist in teaching complex mathematical concepts to students.
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Beginners
Not suitable for complete beginners who may find its features overwhelming without proper guidance or knowledge.
Product Description
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Customer Questions & Answers
-
Question:
What makes the FX-991DE CW unique?
Answer: It features the world’s first high-resolution grayscale display and 680+ functions, making it the most powerful technical-scientific calculator. -
Question:
Can it solve complex equations?
Answer: Yes, it can solve polynomial equations up to 4 degrees and additional equation systems with 4 unknowns. -
Question:
How does the QR code function work?
Answer: You can scan the QR code with your smartphone or tablet to visualize results and data captured by the calculator.
Casio Editorial Review
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Customer Reviews & Ratings
11 customers ratings
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5 Star
65%
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Pros
- User-friendly interface
- Advanced calculation features
- High-resolution display
- Durable protective case
- Compact and lightweight design
Cons
- A few advanced features may require time to learn.
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Mohammad
Verified buyer
“Excellent quality and original too,when ubuy send original things I will appreciate that ,I very satisfied thank you”
23 July 2026 · via Trustpilot
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“The order and delivery progress was communicated very well. Package arrived within the estimated time. Products arrived as expected in good condition.”
22-Jul-26 · via Trustpilot
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23-Jul-26 · via Trustpilot
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23 July 2026 · via Trustpilot
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MWK 170407
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Features & Benefits
- World's first high-resolution grayscale display for clear mathematical expression.
- 680+ functions including solving equations, integrals, and matrices.
- Intuitive operation with customized button design for easy management.
- Natural representation of mathematical expressions without abbreviations.
- QR code function for visualizing results on smartphones or tablets.
- Perfect for students with menu-assisted navigation simplifying usage.
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