Casio FX991MSPLUS2 Engineering/Scientific Calculator : �鶹��.ca: Office Products

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Casio FX991MSPLUS2 Engineering/Scientific Calculator

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Brand	Casio
Colour	Gray
Calculator Type	Engineering/Scientific
Power source	battery
Screen size	2.52

About this item

Scientific calculator with 401 advanced functions. Solar and battery backup
Calculus: integration, differential calculations; vector & matrix
Engineering calculations with different bases; base-n calculations/ conversions DECT., hex., Oct., and binary
40 scientific constants and 40 metric conversions
Two -way power; slide -on hard case

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This item: Casio FX991MSPLUS2 Engineering/Scientific Calculator

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Technical Details

Brand	‎Casio
Manufacturer	‎Casio
Place of Business	‎Markham, ON L3R 3L3, CA
Model	‎FX991MSPLUS2
Model Name	‎FX 991MSPLUS2
Part Number	‎FX991MSPLUS2
Mounting Hardware	‎casecover, Calculator, manual
Number of Items	‎1
Display Technology	‎LCD
Standing screen display size	‎2.52
Display type	‎LCD
Power source type	‎battery
Batteries included	‎Yes
Batteries Required	‎Yes
Battery Cell Composition	‎Alkaline
Material Type	‎Plastic
Does it contain liquid?	‎No
Manufacturer	‎Casio
Item model number	‎FX991MSPLUS2
Product Dimensions	‎6.4 x 3 x 0.44 cm; 95.25 g
ASIN	‎B07SK3GDM8

Additional Information

Batteries	1 LR44 batteries required. (included)
Date First Available	May 1 2019
Customer Reviews	947 ratings 4.7 out of 5 stars
�鶹�� Rank	#2,189 in Electronics (See Top 100 in Electronics) #10 in Scientific Calculators

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Product description

Casio FX991MSPLUS2 scientific calculator. 2-Line display scientific calculator. Multi-replay function: backtrack step-by-step through calculations after you perform them. Equation solver, fraction calculations, permutation/combination, stat-data editor, solar Plus with Battery back-up, trigonometric functions, 1 independent Memory. Comes with slide-on hard case.

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Price	$15.33	-6%��$38.20 Was: $40.58	-11%��$31.05 List: $34.99	$36.90	$11.85	$25.60
Delivery	—	Get it by Sunday, Jun 29	—	Get it by Saturday, Jun 28	Get it by Saturday, Jun 28	Get it by Saturday, Jun 28
Customer ratings	4.7947	4.7262	4.51,374	4.44,320	4.2621	4.47,465
Sold by	�鶹��.ca	DREAM FIELD Z	�鶹��.ca	DREAM FIELD Z	Mr. Pen	PrimeSupplies
model name	FX 991MSPLUS2	FX 991ES	FX-991CW	Scientific	FC01	FX-82ESPLUS-2-S4DT
power source	battery	Battery Powered	Battery Powered	Battery Powered	Solar Panel (Works Only When It Is Bright) And Battery	Battery Powered
battery quantity	1 lr44	1 lithium ion	1 lr44, 1 unknown	0 nonstandard battery	1 lr44	1 aaa
display type	LCD	LCD	LCD	LCD	LCD	LCD
material	Plastic	Plastic	Plastic	Plastic	Plastic	Plastic

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Customer reviews

947 global ratings

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Customers say

Customers like the complexity, quality, and ease of use of the calculator. They mention it has all the functions that mostly require for middle school, is easy to read, and the layout is easy to learn. Customers also appreciate the appearance. However, some customers have reported issues with the button responsiveness.

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Complexity Quality Ease of use School-appropriate Appearance Button responsiveness

50 customers mention "Complexity"50 positive0 negative

Customers like the complexity of the calculator. They mention it's very useful, has all the functions that mostly require for middle school and high school math. Some say it can write many formulas with it.

"Great calculator! It's small, compact, and perfect for on-the-go use. It works just as expected. Very happy with my purchase!" Read more

"Decent product. works well and my high school kid likes it" Read more

"Excellent little calculator. I purchased two after one got soaked. A great feature is the solar panel, and the trace back steps for doing research...." Read more

"The calculator is good .only the reason I m giving 3 star because i ordered new and it came out used with open box...." Read more

34 customers mention "Quality"28 positive6 negative

Customers are satisfied with the quality of the calculator. They mention it works well, is reliable, and durable. Some say it's good enough for high school students to do everything they need at that level.

"This calculator is of good quality and helped me survive through high school Physics and Advanced Functions...." Read more

"Good product" Read more

"Great for high school math classes, durable too. Have bought 2" Read more

21 customers mention "Ease of use"21 positive0 negative

Customers find the calculator easy to use. They mention the layout is easy to learn, the interface is great, and all scientific calculations are easily done. Customers also appreciate the decent syntax for exponents and order of operations.

"Buttons are large enough and display is easy to read." Read more

"Complex calculations, memory space and display readability are quite good." Read more

"...It's easy to use, looks great, and performs all of the basic functions I need. The display is bright and clear, making it easy to read...." Read more

"Recommend by teacher. Child finds it easy to ise" Read more

14 customers mention "School-appropriate"14 positive0 negative

Customers find the calculator to be school-appropriate. They mention it's great for school, work, and home. Some say it's perfect for statistics and physics courses and approved for university math courses.

"...Typical of Casio. Great for school, work and home" Read more

"Amazing product for students, but the ON button is a little pushed in compared to the others" Read more

"Great use for my studies and work." Read more

3 customers mention "Appearance"3 positive0 negative

Customers like the appearance of the calculator. They mention it's easy to use and looks great.

"The second version of the original FX991MS. Dame layout with an upgraded look and feel. Very easy to use...." Read more

"Does the job and still maintains a good look, sets apart from all the calculator I've had before." Read more

5 customers mention "Button responsiveness"0 positive5 negative

Customers are dissatisfied with the button responsiveness of the calculator. They mention the ON button is a little pushed in, the buttons don't work properly, and are sticky.

"...me spilling corn syrup on thr #3 and #6 key it still works but buttons sticky" Read more

"...When I received it the button did not exist but it still does the job" Read more

"...Not sure if this is intended but mine came with the ON button depressed and slightly harder to turn on." Read more

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Top reviews from Canada

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Lauren
Good calculator
Reviewed in Canada on June 18, 2025
Verified Purchase

This calculator is of good quality and helped me survive through high school Physics and Advanced Functions. (Don't use this calculator for 12 U trig. It doesn't give answers in pi). Otherwise, it is great!

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Amy
Perfect
Reviewed in Canada on May 16, 2025
Verified Purchase
Perfect and cheaper than my campus store :)

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Karim Almomani
Good for school use
Reviewed in Canada on January 29, 2025
Verified Purchase
Got exactly what I asked for. Generally not the best calculator out there but our school requires it

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Nice product, fits perfectly.
All good
Reviewed in Canada on March 28, 2025
Verified Purchase
Good product

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�鶹�� Customer
Great calculator!
Reviewed in Canada on February 20, 2025
Verified Purchase
Great calculator! It's small, compact, and perfect for on-the-go use. It works just as expected. Very happy with my purchase!

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Farside007
Good enough for high school student.
Reviewed in Canada on February 3, 2025
Verified Purchase
Buttons are large enough and display is easy to read.

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MC
Nice
Reviewed in Canada on January 7, 2025
Verified Purchase
Decent product. works well and my high school kid likes it

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Paul TE Cusack
Excellent little machine
Reviewed in Canada on August 29, 2024
Verified Purchase
Excellent little calculator. I purchased two after one got soaked. A great feature is the solar panel, and the trace back steps for doing research. I think it is the best value thing I've ever purchased! Every engineer should have one.

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