5.0 out of 5 stars Amazing for the price point

2026-03-01    -John S

I picked up the 991ES Scientific Calculator with the attached drawing notepad for my college engineering classes, and it’s honestly one of the best study tools I’ve ever owned. The calculator itself performs just like any high-end Casio — fast, accurate, and easy to use. Very good for the price and It handles complex equations, trig functions, and conversions with zero lag, and the display is super clear with a natural textbook format that makes it easy to follow along with formulas.What really makes this setup shine is the notepad that’s built into it. I didn’t realize how useful it would be until I started using it every day. The magnetic stylus feels smooth, and being able to jot down quick notes, steps, or rough sketches right next to the calculator saves a ton of time. I use it constantly for solving statics problems and quick trigonometry sketches without flipping through my notebook.The build quality is solid, too. The buttons have that perfect clicky feel, the cover slides smoothly, and the notepad erases completely clean every time. It’s lightweight but feels sturdy enough to toss in my backpack without worrying about it.If you’re a student in math, physics, or engineering, this combo is worth it. Having both a professional-grade calculator and a small reusable notepad in one compact setup makes studying and problem-solving so much easier. I honestly wish I had bought it sooner — it’s one of those tools that just makes schoolwork smoother and more enjoyable.

5.0 out of 5 stars Perfect Calculator for Middle School – My Daughter Loves It

2026-02-21    -Asia morrill

purchased this scientific calculator for my daughter, who is in eighth grade, and it has been such a great buy! She absolutely loves it and uses it daily for her math classes. The layout is clear and easy to understand, with all the functions she needs for algebra and beyond. It’s not overly complicated, but still advanced enough to handle the more complex problems she’s starting to learn. She says the buttons respond smoothly and the display is easy to read, even when working through long equations. It feels sturdy and well-made, so I know it will last her through middle school and into high school. I also appreciate that it’s lightweight and portable, so she can keep it in her backpack without it taking up much space. Overall, it’s a reliable, user-friendly tool that makes her feel confident in her work. Five out of five—definitely worth it for any student!

5.0 out of 5 stars A GREAT GIFT FOR HIGH SCHOOLERS!

2026-03-07    -Bbygurl

My nephew called and needed a scientific calculator for his math class, and this was my choice! It was affordable and what he needed, but the writing pad was my eye catcher, and wanted my nephew to know that his auntie did her research! It is so obvious the calculator is very durable, and has a great battery life because I asked to use it 2 months later, and the calculator is in one piece and still working!! The buttons are still in place and are still easy to press, and the writing screen still works! I am very happy and proud of my purchase because he's a tough,14 year old boy who throws his book bag without thinking!

5.0 out of 5 stars Good calculation

2026-01-02    -Vee

Love his calculator . It has not failed me . Is cute and compact

5.0 out of 5 stars Good calculation

2026-03-05    -Vee

Love his calculator . It has not failed me . Is cute and compact

5.0 out of 5 stars Amazing for the price point

2026-02-21    -John S

I picked up the 991ES Scientific Calculator with the attached drawing notepad for my college engineering classes, and it’s honestly one of the best study tools I’ve ever owned. The calculator itself performs just like any high-end Casio — fast, accurate, and easy to use. Very good for the price and It handles complex equations, trig functions, and conversions with zero lag, and the display is super clear with a natural textbook format that makes it easy to follow along with formulas.What really makes this setup shine is the notepad that’s built into it. I didn’t realize how useful it would be until I started using it every day. The magnetic stylus feels smooth, and being able to jot down quick notes, steps, or rough sketches right next to the calculator saves a ton of time. I use it constantly for solving statics problems and quick trigonometry sketches without flipping through my notebook.The build quality is solid, too. The buttons have that perfect clicky feel, the cover slides smoothly, and the notepad erases completely clean every time. It’s lightweight but feels sturdy enough to toss in my backpack without worrying about it.If you’re a student in math, physics, or engineering, this combo is worth it. Having both a professional-grade calculator and a small reusable notepad in one compact setup makes studying and problem-solving so much easier. I honestly wish I had bought it sooner — it’s one of those tools that just makes schoolwork smoother and more enjoyable.

5.0 out of 5 stars Perfect Calculator for Middle School – My Daughter Loves It

2026-01-08    -Asia morrill

purchased this scientific calculator for my daughter, who is in eighth grade, and it has been such a great buy! She absolutely loves it and uses it daily for her math classes. The layout is clear and easy to understand, with all the functions she needs for algebra and beyond. It’s not overly complicated, but still advanced enough to handle the more complex problems she’s starting to learn. She says the buttons respond smoothly and the display is easy to read, even when working through long equations. It feels sturdy and well-made, so I know it will last her through middle school and into high school. I also appreciate that it’s lightweight and portable, so she can keep it in her backpack without it taking up much space. Overall, it’s a reliable, user-friendly tool that makes her feel confident in her work. Five out of five—definitely worth it for any student!

Versatility

2026-01-20    -r. guenette

Size is perfect for carrying in purse and easy to use

5.0 out of 5 stars Great calculator

2026-01-19    -BevB

It works great and has been very helpful for my middleschooler

4.0 out of 5 stars Nice Science Calculator

2026-01-15    -Don Seymour

I got this scientific calculator to help me with math problems that just beyond me. It has an interesting feature that I never seen before and should be real handy when needed. It had a note pad on it that lets you write down anything you need to remember and it locks so it don’t accidentally erase on you kind of unique. I wish we had these back in my school days. It seems to function very well and was a good price for such a nice piece of technology. As far as long last that will come with time but for now it’s a handy little tool for anyone in school or work to carry with them. It’s light weight and they say shock proof but they also said the titanic was unsinkable lol and look what happened. But for now it’s not a bad thing to have. Especially if you need help in the math department like me.