Casio fx-300ES Plus 2nd Ed Standard Scientific Calculator, Blue

Good quality and price, useful for 9 th grader.

I bought this Casio fx-300ES Plus 2nd Edition mainly for school/work calculations, and it has been very solid so far. The display is clear and easy to read, especially when entering fractions, exponents, square roots, and longer expressions. I like that the layout is simple enough for basic use but still has the scientific functions needed for algebra, statistics, trig, and general math classes. The buttons feel responsive and have a good amount of feedback when pressed. They are not too soft or too stiff. The calculator is also lightweight, so it is easy to keep in a backpack or desk drawer without taking up much space. The pink color is a nice bonus because it stands out and is harder to misplace. One thing to know is that this is not a graphing calculator, so it is best for standard scientific calculator needs. For that purpose, it does exactly what it should. Overall, it feels dependable, easy to use, and well-built for the price. I would recommend it for students or anyone who needs a straightforward scientific calculator.

I'm an adult scientist who grew up with basic calculators, then scientific calculators, and finally graphing calculators throughout my education and who prefers physical calculators instead of apps on a phone or computer, especially when dealing with fractions, exponents, or roots. Graphing calculators are powerful, but bulky and require battery changes at inconvenient times (tip: use lithium or low-self-discharge NiMH rechargeable batteries instead of alkaline batteries in graphing calculators since they don't leak!). I was in the market for a scientific calculator that offered the typical range of scientific functions (e.g. trigonometric functions, exponents and roots, logs, etc.), was solar powered with a battery backup, offered a "natural" (that is, dot-matrix) display for entering input and viewing results in standard form (rather than simply showing decimal results), and a moveable cursor to highlight and make changes to input. I was pleasantly surprised to find this model, which offered all those features for less than $12. In addition, it offered some additional helpful features like being able to calculate the Greatest Common Divisor or Least Common Multiple for pairs of numbers, coordinate conversions, permutations and combinations, and many more. The buttons provide good tactile feedback, and are suitable for use by both children and grown adults. Calculations are performed swiftly with no detectable lag in most cases (some operations take a noticeable split second to carry out, but most are effectively instant), and the ability to have results displayed in exact form (for example, sin(45 degrees) = 1/sqrt(2) rather than 0.70710678199) with the ability to also switch the display to show them in as floating point decimals and back again is very convenient. Entering input is straightforward and intuitive. The screen contrast is adjustable in the menu. Although the calculator does not have a "solve for x"-type equation solver to solve algebraic equations, nor does it have the ability to graph results (which is perfectly fine, nor were those things I would expect in such a device), it's packed with features and functionality that make it extremely powerful and handy. My only quibble is that I wish the ON, OFF, and AC button all shared a single key instead of the ON button being separate. Out of habit, I find myself pressing the AC button in an attempt to turn the calculator on and it's annoying that pushing that button doesn't work to turn it on; one needs to press the separate ON button. It'd be virtually perfect if AC button also doubled as the ON button, and SHIFT+ON/AC turned the calculator off. Still, for less than $12 this calculator is an outstanding value and performs functions that scientists of even a few decades ago would be envious of and willing to pay considerably larger sums for. I like it and recommend it.

imple and gets the job done. Easy to use and covers everything you need for school math, the display is clear and easy to read which makes a big difference. Has all the functions you could need without being overwhelming. Solid calculator for the price, would recommend!

Good little machine. Doesn’t do all of the computations that the Texas Instrument 84 C Plus Python can do but will do a lot of basic scientific calculations more simply than the TI 84. It also costs a fraction of the TI 84 cost. The TI 84 will graph functions the Casio doesn’t.

As a teacher and someone who values clarity in mathematical thinking, I’m genuinely impressed by this calculator. The Natural Textbook Display is a game-changer—it shows fractions, roots, and equations exactly as they appear in textbooks, which helps students avoid common input errors and better understand their work. With 262 built-in functions, it’s perfect for everything from basic algebra to trigonometry and statistics. I’ve used it to model step-by-step problem solving in class, and my students find it intuitive and easy to navigate. The solar power with battery backup is a thoughtful touch—no more worrying about dead batteries during a test. It’s lightweight, durable, and affordable, making it ideal for middle and high school students. Whether you're teaching or learning, this calculator supports deep understanding rather than just quick answers.

This calculator is extremely helpful. It is very intuitive and easy-to-use. The font is acceptable. The price was incredible. It was a nice upgrade. A ready helpful feature is that these calculators are allowed during tests. The solar feature keeps it running flawlessly. The buttons are a great size even for larger fingers.

Works perfectly

OTTIMO

I loved it. Beautiful and bright colours, easy to use and comes with a manual to help you with harder formulas

Same as picture i like it

Me gustó mucho el color que aunque en fotos se ve bien en persona se ve aún mejor, es un fácil tema de conversación y además me gusta que las teclas son fáciles de presionar, me gusta la comidad y aunque no lo parezca, realmente se ensucia poco además de que la cálida de los materiales es muy buena y me ha resistido alguna caída ocasional

The quality, look, and accuracy was amazing