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About this product
Product Identifiers
BrandCasio
MPNFX991EX
GTIN0079767032593, 0809787035195, 0809394579433
UPC0079767032593, 0809787035195, 0809394579433
eBay Product ID (ePID)2254331278
Dimensions
Height0.43in.
Width0.25in.
Weight0.19lbs.
Length0.4"
Ratings and reviews
Most relevant reviews
- 17 Jan, 2022Most favourable review
Great Value!!! Thankful Wallet!!! Kids are sooo happy with their calculator
Great value!!! wrappers were in really bad shape but calculators were perfect.... just as intended to take advantage of a comfortable discount!!! Thankyou for thinking of our wallet!!!Verified purchase: YesCondition: Pre-owned
- 04 May, 2022Most critical review
Too fancy-schmancy for everyday use
One of the keys on my trusty old fx-260 had become erratic (it's over 20 years old, so I can't complain) and I decided to upgrade to the state-of-the-art fx-991ex. Unfortunately, I don't like it. First, my minor gripes: (1) It's too big; I love the pocketable size of the fx-260; (2) the keys feel like chiclets and make a rattling sound when pressed; (3) the mottled surface texture makes the alternate key labels hard to read, especially the blue ones - practically impossible except in very bright light - what were they thinking? (4) The slide-on cover is too loose-fitting, slips off by itself. But more importantly, (5) I find that I don't like its main attraction, the V.P.A.M. entry method. The display is pretty and I like how the entered formula remains on display together with the answer - but it's cumbersome: expressions used in everyday math and science require more clicks than with the "immediate entry" method. And the whole menu system - who uses a calculator for spreadsheets or matrix calculations? Come on. -- The fx-991ex is a very cool calculator and I'm keeping it to show off to family and friends, but I got myself a replacement fx-260 for everyday use. (Secretely, I want a SwissMicro dm42, but they're just too expensive.)Verified purchase: YesCondition: Pre-owned
- 19 Apr, 2016
"best features in a scientific calculator"
I bought this calculator because it has variable memories, which means you can save values for letters A, B, C, D, E, and F into the calculator to use later on. I was having trouble memorizing a certain constant, so I saved it in my calculator. It also comes with lots of constants pre-programmed. I also love that i can go back and edit formulas after i get an answer. Also, the QR code generator is fun!Verified purchase: YesCondition: New
- 24 Apr, 2018
I would recommend it to anyone looking to get a functional calculator for engineering.
It is very easy to use, so many useful functions that make calculations easier than ever. I am glad I opted for this upgrade.Verified purchase: YesCondition: Pre-owned
- 01 Nov, 2019
Excelent product, very thankful
I recieve very fast and on excelent conditionsVerified purchase: YesCondition: New
- 05 Aug, 2020
New classic
This is Casios best scientific (non graphing) calculator and is faster than competing devices from Sharp and Ti. It really hasn’t changed in several years now as this segment of about fully mature.Verified purchase: YesCondition: Pre-owned
- 11 Mar, 2025
No need of withholding any star. Because...
No need of withholding any star. Because I'm happy about everything. the calculator is amazing and looks legit. That's enough for me. my sister lives it, she is the one I brought for as she is getting ready for national examinations.Verified purchase: YesCondition: Pre-owned
- 03 Mar, 2025
Great CASIO fx-991EX Classwiz Line calculator
Easy to use and faster than TI and Sharp of comparable models.Verified purchase: YesCondition: Pre-owned
- 29 Mar, 2017
I love this calculator!
So much better than the Casio fx 260 I've had for years. I love this calculator for the price.Verified purchase: YesCondition: New
- 09 Aug, 2019
Highly recommended
The best investment I ever made, the best in market. It doesn't matter what kind of test it's approved.Verified purchase: YesCondition: New
