Casio Battery & Solar Powered Graphical Calculator, FX-991CW
Solving equations and systems up to 4 equations and matrix calculation 4 x 4. QR code for continuing calculations on PC. Spreadsheet to study statistics. High resolution natural LCD display with 192 x 63 pixels and icon menu. Scientific calculator with over 540 functions designed for school. New science calculator ideal for secondary school 2nd grade with practical and intuitive design, 4level highresolution app display with gray, and faster processor. Over 540 functions including spreadsheet, QR code generation, simultaneous solver and polynomial up to four degrees, numerical integration, differentiation, statistics, matrices, vector calculation. Natural Textbook Display Insert and display fractions, powers, logarithms, roots and other mathematical formulas and symbols just as they appear in textbooks.
Solving equations and systems up to 4 equations and matrix calculation 4 x 4. QR code for continuing calculations on PC. Spreadsheet to study statistics. High resolution natural LCD display with 192 x 63 pixels and icon menu. Scientific calculator with over 540 functions designed for school. New science calculator ideal for secondary school 2nd grade with practical and intuitive design, 4level highresolution app display with gray, and faster processor. Over 540 functions including spreadsheet, QR code generation, simultaneous solver and polynomial up to four degrees, numerical integration, differentiation, statistics, matrices, vector calculation. Natural Textbook Display Insert and display fractions, powers, logarithms, roots and other mathematical formulas and symbols just as they appear in textbooks.
Solving equations and systems up to 4 equations and matrix calculation 4 x 4. QR code for continuing calculations on PC. Spreadsheet to study statistics. High resolution natural LCD display with 192 x 63 pixels and icon menu. Scientific calculator with over 540 functions designed for school. New science calculator ideal for secondary school 2nd grade with practical and intuitive design, 4level highresolution app display with gray, and faster processor. Over 540 functions including spreadsheet, QR code generation, simultaneous solver and polynomial up to four degrees, numerical integration, differentiation, statistics, matrices, vector calculation. Natural Textbook Display Insert and display fractions, powers, logarithms, roots and other mathematical formulas and symbols just as they appear in textbooks.
Solving equations and systems up to 4 equations and matrix calculation 4 x 4. QR code for continuing calculations on PC. Spreadsheet to study statistics. High resolution natural LCD display with 192 x 63 pixels and icon menu. Scientific calculator with over 540 functions designed for school. New science calculator ideal for secondary school 2nd grade with practical and intuitive design, 4level highresolution app display with gray, and faster processor. Over 540 functions including spreadsheet, QR code generation, simultaneous solver and polynomial up to four degrees, numerical integration, differentiation, statistics, matrices, vector calculation. Natural Textbook Display Insert and display fractions, powers, logarithms, roots and other mathematical formulas and symbols just as they appear in textbooks.
in 13 offers
The lowest price for Casio Battery & Solar Powered Graphical Calculator, FX-991CW right now is $36.94 at Whatnot, compared across 7 retailers.
The all-time low was $11.39 on 19 Oct 2026 — today's price is 224% above the lowest ever. It has been notably cheaper before — worth setting a price alert.
Prices last updated 30 Oct 2026.
Last updated at 30/10/2026 12:02:13
Unique Collectible Casio Advanced Scientific fx-991CW
New Casio Fx-991CW Classwiz Scientific Calculator Black Limited Stock
Delivery $15.40
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
fx-991CW Advanced Scientific Calculator, 4-Tone Display
Free delivery between 10–13 Nov
fx-991CW Advanced Scientific Calculator (UK Version)
Delivery between 5–8 Nov $29
FX-991CW Scientific Calculator
Delivery between 3–7 Nov $41
fx-991CW+ Scientific Calculator Black (UK Version) - Upgrade from Previous fx-991CW Model
Free delivery between 10–13 Nov
Casio FX-991CW Scientific Calculator
Delivery between 5–6 Nov $80.94
originally posted on ebay.com
Bought for my Grandson who is about to start studying for his A level Maths and Physics, he's really pleased with it. Arrived sooner than expected.
| Calculator Type | Engineering/Scientific |
| Power source | Solar Powered |
| Number of batteries | 1 LR44 batteries required. |
| Display Type | LCD |
| Batteries Included | No |
Unique Collectible Casio Advanced Scientific fx-991CW
New Casio Fx-991CW Classwiz Scientific Calculator Black Limited Stock
Delivery $15.40
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
fx-991CW Advanced Scientific Calculator, 4-Tone Display
Free delivery between 10–13 Nov
fx-991CW Advanced Scientific Calculator (UK Version)
Delivery between 5–8 Nov $29
FX-991CW Scientific Calculator
Delivery between 3–7 Nov $41
Bought for my Grandson who is about to start studying for his A level Maths and Physics, he's really pleased with it. Arrived sooner than expected.
| Calculator Type | Engineering/Scientific |
| Power source | Solar Powered |
| Number of batteries | 1 LR44 batteries required. |
| Display Type | LCD |
| Batteries Included | No |
