Why does the calculator not display decimal answers and only fractions, and why won't it square numbers that aren't perfect squares

Hello, the sd key will change fractions to decimals and back if needed. The calculator will simplify square roots that are not perfect squares and if you need a decimal answer then press the sd key and if will convert it to a decimal.

Is there a comma separator - thousands function for millions and billions,etc. for example 50,000,000,000?

This is not a business calculator - not sure why you'd want a comma separator when you'd be using scientific notation: 5x10^10 for example.

How is this different than the fx-300ESPLUS2 ?

I am not familiar with the fx-300ESPLU52. You might be able to go to the Casio website to get information on how they are different. This one (the fx-115) has many features which I have not yet used.

can it used in SAT exam?

I'm a retired hs teacher. I've bought this model two times for my own kids because it met their needs and can be used during standardized exams such as the SAT.

Fx 115es Plus 2nd Edition Advanced Scientific Calculator 280 Functions

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Description

📊 Elevate your calculations — because precision is the new power move.

MULTI REPLAY MAGIC - Instantly backtrack, edit, and recalculate to eliminate errors and boost confidence.
POWER THAT NEVER QUITS - Solar-powered with battery backup ensures uninterrupted performance during long study sessions.
TEXTBOOK PERFECT DISPLAY - See equations & fractions exactly as in your textbooks for flawless comprehension.
280 FUNCTIONS AT YOUR FINGERTIPS - From calculus to statistics, master complex calculations with ease and precision.
ENGINEERED FOR PROFESSIONALS STUDENTS - Ideal for math, science, engineering, and statistics — your all-in-one academic sidekick.

The Casio fx-115ES Plus 2nd Edition is a top-tier advanced scientific calculator featuring a 16-digit, 4-line Natural Textbook Display℠ that mirrors textbook visuals for intuitive learning. With over 280 functions including complex number calculations, integration, and matrix operations, it’s designed for high school, college, and professional use in math, science, engineering, and statistics. Its Multi-Replay function allows easy error correction, while Solar Plus technology with battery backup guarantees reliable, long-lasting power. Lightweight and durable, it’s a must-have tool for anyone serious about mastering advanced calculations.

Specifications

ASIN	B086Z79HXS
Best Sellers Rank	#1,670 in Office Products ( See Top 100 in Office Products ) #3 in Scientific Calculators
Brand	Casio
Calculator Type	Engineering/Scientific
Color	White
Customer Reviews	4.8 out of 5 stars 7,249 Reviews
Display Type	LCD
Enclosure Material	Plastic
Global Trade Identification Number	00889232609690
Item Dimensions L x W	9"L x 5.5"W
Item Type Name	Advanced Scientific Calculator
Item Weight	6.05 Ounces
Manufacturer	Casio
Mfr Part Number	FX-115ESPLS2
Model Name	FX-115ESPLS2
Model Number	FX-115ESPLS2
Number of Batteries	1 LR44 batteries required. (included)
Power Source	Solar Powered
Screen Size	6.5 Centimeters
UPC	889232609690
Unit Count	1.0 Count
Warranty Description	1 year limited parts & labor

Reviews

H**P

27.10.2025

J**N

12.03.2026

C**A

5.03.2026

D**1

5.09.2022

Y**S

23.11.2025

K**G

25.11.2023

G**N

28.01.2026

S**W

31.01.2026

L**O

30.03.2026

T**T

29.12.2024

A**Z

26.04.2026

C**E

23.05.2025

P**Z

23.11.2025

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Rp722786

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Sold byAmazon IndonesiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Indonesia.

Secure transaction

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fx-115ES Plus 2nd Edition – Advanced Scientific Calculator | 280+ Functions, Natural Textbook Display℠ | Ideal for Math, Science, Engineering & Statistics

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Common Questions