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expiredSweet.sour posted Sep 07, 2023 03:26 AM
expiredSweet.sour posted Sep 07, 2023 03:26 AM

Casio fx-300ES PLUS Standard Scientific Calculator (2nd Edition, Various Colors)

$9.80

$29

66% off
Amazon
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Amazon has Casio fx-300ES PLUS Standard Scientific Calculator (2nd Edition, FX-300ESPLS2) on sale for $9.79. Shipping is free w/ Prime or on $25+ or $35+ orders (minimum requirement varies by location).

Thanks to Community Member Sweet.sour & michi098 for sharing this deal.

Colors Available:
About this Item:
  • 249 built-in math functions
  • Scientific calculator with Natural Textbook Display can display fractions, derivatives, integrals, sums, and other operations similar to their display in math textbooks
  • Perfect choice for middle school through high school students learning general math, trigonometry, statistics, algebra I and II, pre-algebra, geometry, physics
  • Features linear regression, quadratic regression, logarithmic regression, e-exponential regression, ab-exponential regression, power regression, and inverse regression
  • Can transform a displayed decimal calculation result to a fraction or mixed number

Editor's Notes

Written by citan359 | Staff
  • About this Deal:
    • Rated 4.7 out of 5 stars from customer reviews.
    • At the time of this posting, our research indicates that this is $1.50 lower than the next best available prices starting from $11.29. -SaltyOne
  • About this Store:

Original Post

Written by Sweet.sour
Community Notes
About the Poster
Deal Details
Community Notes
About the Poster
Amazon has Casio fx-300ES PLUS Standard Scientific Calculator (2nd Edition, FX-300ESPLS2) on sale for $9.79. Shipping is free w/ Prime or on $25+ or $35+ orders (minimum requirement varies by location).

Thanks to Community Member Sweet.sour & michi098 for sharing this deal.

Colors Available:
About this Item:
  • 249 built-in math functions
  • Scientific calculator with Natural Textbook Display can display fractions, derivatives, integrals, sums, and other operations similar to their display in math textbooks
  • Perfect choice for middle school through high school students learning general math, trigonometry, statistics, algebra I and II, pre-algebra, geometry, physics
  • Features linear regression, quadratic regression, logarithmic regression, e-exponential regression, ab-exponential regression, power regression, and inverse regression
  • Can transform a displayed decimal calculation result to a fraction or mixed number

Editor's Notes

Written by citan359 | Staff
  • About this Deal:
    • Rated 4.7 out of 5 stars from customer reviews.
    • At the time of this posting, our research indicates that this is $1.50 lower than the next best available prices starting from $11.29. -SaltyOne
  • About this Store:

Original Post

Written by Sweet.sour

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+55
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Model: 2nd Edition Scientific

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Sort: Lowest to Highest | Last Updated 12/27/2025, 06:37 PM
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Top Comments

The_Love_Spud
5189 Posts
2005 Reputation
This is exactly what has led to TI's dominance. Even as an owner of a firmware-upgraded Casio fx, I'd still primarily recommend a Casio model to a calculator enthusiast. For the average student I'd generally start with identifying the TI model appropriate to the task.

Good luck!
Jon

60 Comments

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Sep 07, 2023 06:46 PM
2,737 Posts
Joined Feb 2008
SquirtTortugaSep 07, 2023 06:46 PM
2,737 Posts
Quote from The_Love_Spud :
This is exactly what has led to TI's dominance. Even as an owner of a firmware-upgraded Casio fx, I'd still primarily recommend a Casio model to a calculator enthusiast. For the average student I'd generally start with identifying the TI model appropriate to the task.

Good luck!
Jon
I ran into this issue with Casio myself about 30 years ago. Superior product at a good price, but almost nobody else is familiar with it.

I have a serious question - You sound like a calculator enthusiast yourself. What do you do with calculators that drives your interest? I am an engineer and rarely find use for a calculator these days. For me, having a high-end calculator would be like having a racecar with no track.
Sep 07, 2023 06:55 PM
3,967 Posts
Joined Feb 2013
babygdavSep 07, 2023 06:55 PM
3,967 Posts
Quote from vaibhav1203 :
Curious to know at what grade does school require a scientific calculator.
Varies across America, even per class.

Honestly though, not making America's kids any smarter at math after they allowed calculators even on college admission tests.

https://m.youtube.com/watch?v=yj7XbnYrIk0

https://www.pewresearch.org/wp-co..._table.png

And that's even after rich states like CA spending 2x+ more on K-12 than many of the countries beating America on standardized math tests.

Just buy the minimum (cost) required, but absolutely have the kids learn to do their homework by pencil and paper only, Fast.

Simply learning how to use the abacus well enough to visualize working a virtual one in one's mind (2, 3 years of lessons) will allow the little ones to murder classmates on a ton of math tests.
Sep 07, 2023 07:21 PM
368 Posts
Joined Aug 2023
I_like_feetSep 07, 2023 07:21 PM
368 Posts
Unrelated to school requirements but I use a numworks graphing calculator instead of TI products, was super easy for me to learn. Been straightforward using it for regressions, graphing piecewise functions, inverse, etc. When I have a professor that wants scientific only then I use my backup which is the TI-36xPro which got a new color redesign recently (no more cheesy chrome). These Casio and the pricier ones have some limitations that the TI does not have which can be found in the amazon reviews. I prefer the button layout on Casio's and the bigger screen.
Sep 07, 2023 07:25 PM
98 Posts
Joined Apr 2012
Batman720Sep 07, 2023 07:25 PM
98 Posts
Quote from NissaRayna :
5th Grade here.
TI-30 is the preferred, and that, I think it's just to keep everyone on the same page.
My daughter's died while she was in 10th grade and we purchased her a Casio with no issues, but things are different in high school to middle school.
My son who just went into 8th grade has the TI-30, it's still on required school supply list.
It definitely makes it easier on the teachers to explain how to use it and won't distract the kids in class like a graphing calculator would. Parents would probably lose their minds if they were forced to buy a $100+ graphing calculator for their middle schooler only to have it stole or misplaced.
Sep 07, 2023 07:48 PM
752 Posts
Joined Mar 2005
rayrayzSep 07, 2023 07:48 PM
752 Posts
Quote from asizzle19 :
Are these the kind that can run Doom?
I know that Ti-84+ can. Don't think this Ti-30s can
Sep 07, 2023 10:44 PM
1 Posts
Joined Feb 2011
undrtkrSep 07, 2023 10:44 PM
1 Posts
Quote from PeteC :
Still looking for a good RPN calculator to replace my worn out HP 48
Free42 does it for me. (search Play/App Store).
Sep 08, 2023 01:19 AM
5,189 Posts
Joined Jun 2019
The_Love_SpudSep 08, 2023 01:19 AM
5,189 Posts
Quote from BlueYoshi :
The TI graphing calculators can also run on basically potato power without loss of computational integrity or loss of data in memory
I've owned some of my calculators long enough to replace the coin battery that accompanies the solar panel... but you're spot on as this replacement happens on the order of many years(!).

Contrast this with some of the graphing models that, under regular enough use, will justify carrying spare batteries just in case.

Good luck!
Jon
1

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Sep 08, 2023 01:23 AM
5,189 Posts
Joined Jun 2019
The_Love_SpudSep 08, 2023 01:23 AM
5,189 Posts
Quote from SquirtTortuga :
I have a serious question - You sound like a calculator enthusiast yourself. What do you do with calculators that drives your interest? I am an engineer and rarely find use for a calculator these days. For me, having a high-end calculator would be like having a racecar with no track.
Definitely inventing reasons these days (though obviously engineering studies and/or testing/certification did once vaguely justify some of these). My Casio SL800 credit card calculator honestly could handle most of my computational needs these days (which is why I keep that one at my work desk while most of my other calculators call a particular dresser drawer home).

As an example, I was able to get my job gift me the Casio fx-CG500 (a sort of anniversary present alternative to a gold watch) and the primary function was to hand it to my youngest for goofing around in the integrated periodic table during trips to school in the car.

Good luck!
Jon
2
Sep 08, 2023 02:05 AM
200 Posts
Joined Oct 2009
mrcoolcatSep 08, 2023 02:05 AM
200 Posts
Quote from CoolField1552 :
FX-350ES PLUS 2 is 11bucks. Numbers at back, lower the better?
Hello! Where did you find this for 11$? (Seems like the fx-350es plus 2 is more prevalent in the Asian/European markets from what I searched). Thanks in advance for your help.
Sep 08, 2023 02:55 AM
103 Posts
Joined Nov 2012
jimmy7430Sep 08, 2023 02:55 AM
103 Posts
Brought 10 as gifts. Thanks,
1
Sep 08, 2023 04:29 AM
364 Posts
Joined Nov 2019
PurpleSnake6860Sep 08, 2023 04:29 AM
364 Posts
Quote from smartdeals :
got 1 for grocery shopping
You need this advanced calculator for grocery shopping? Might be better off with an Abacus.
Sep 08, 2023 06:45 AM
247 Posts
Joined Jan 2011
hairfarmerSep 08, 2023 06:45 AM
247 Posts
Quote from BlueYoshi :
The TI graphing calculators can also run on basically potato power without loss of computational integrity or loss of data in memory
Not the TI-92. It froze up in the middle of my Calc 4 final and would not recover until I pulled the 4 new-ish AA batteries. Doing so killed all my programmed formulas and made me fail the final and repeat the class.

Otherwise it was a capable, very programmable calculator.
Sep 08, 2023 11:42 AM
396 Posts
Joined Aug 2010
klingon_masterSep 08, 2023 11:42 AM
396 Posts
Quote from mjspam :
As an alternative, Amazon also has the TI-30XIIS for $9.88. Just realized someone else posted the same earlier.

Likely all are about the same and it's more about following along with the teacher and knowing the button layout.

Texas Instruments TI-30XIIS Scientific Calculator, Black with Blue Accents https://www.amazon.com/dp/B00000JBNX
It also depends on what kind of math you are doing. I know with the TI-30XIIS you can at least some very basic statistics stuff. The suggested retail price for the Casio fx-300es plus is 28.99. So this is a real slickdeal.
Sep 08, 2023 12:22 PM
1,092 Posts
Joined Sep 2022
TealIdea227Sep 08, 2023 12:22 PM
1,092 Posts
Quote from hairfarmer :
Not the TI-92. It froze up in the middle of my Calc 4 final and would not recover until I pulled the 4 new-ish AA batteries. Doing so killed all my programmed formulas and made me fail the final and repeat the class.

Otherwise it was a capable, very programmable calculator.
"Calc 4" didn't used to be a thing, so I'm interested in this story. Instead of teaching you to actually use Green's Theorem / Stokes' Theorem / Fourier series / Laplace transforms etc, the professor expected / allowed you to just plug everything into a CAS with programmed formulas? I mean, a printed table of integrals / transforms / trig identities would be one thing, but yeah, if you're one battery away from not being able to do symbolic solutions, then this is not college math, this is middle school programming.

Edit: And I did the Finance class where you learn to press the right buttons to get bond yields / NPV instead of thinking, and that wasn't math either.
Last edited by TealIdea227 September 8, 2023 at 06:28 AM.

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Sep 08, 2023 02:28 PM
28,287 Posts
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cgigateSep 08, 2023 02:28 PM
28,287 Posts
Use you smartphone, not a calculator
4

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