About MathOtter™
MathOtter is a free tool to help adult GED students improve their math and algebra skills through practice.
Students can work at their own pace on unlimited free practice problems (with answers), covering more than 90 topics.
Stuck on a problem? MathOtter includes advice on every topic and step-by-step solutions on every problem.
About Us
The MathOtter team is dedicated to providing free tools to help GED students struggling with math and basic algebra. In our experience, many students need more practice in fundamental math skills to be able to improve their chances of passing the math test.
Privacy
We respect your privacy, so there's no individual performance tracking going on in the app and no data is provided to anyone regarding an individual's use of the app.
We don't collect any personal information about you.
We collect anonymous, aggregate usage counts — such as the number of practice problems attempted — to help us understand how the app is being used. This data cannot be linked to any individual user.
Updates
We're constantly making improvements to this web app. Just refresh your browser and you'll be working with the latest version.
NOTE: If you've saved MathOtter to your Home screen on your phone, when you relaunch the app it will automatically be updated to the latest version.
Terms of Use
MathOtter is provided free of charge for educational purposes. While we work hard to ensure accuracy across all topics and problems, the app is offered as-is without warranty of any kind. We make no guarantee of specific outcomes, including GED test results. Use of MathOtter is at your own discretion.
MathOtter is intended for personal educational use. Please don't reproduce or redistribute the app's content without permission.
Version: 3.89
Open Source Acknowledgments
This app uses open-source software packages, including:
- React – MIT License
- Next.js – MIT License
- Bootstrap Icons (via react-icons) – MIT License
- KaTeX – MIT License
- fraction.js – MIT License
- react-modal, react-toastify, and other UI libraries – MIT License
These libraries are used under their respective licenses. A big "Thanks!" from the MathOtter team to the creators and maintainers of these resources.
GED® and GED Testing Service® are registered trademarks of the American Council on Education (ACE) and are administered by GED Testing Service under license. This website and its practice materials are not endorsed by, sponsored by, or affiliated with ACE or GED Testing Service. This is an independent test preparation resource. Any references to GED test names, trademarks, service marks, or certification marks are used for identification and educational purposes only.
© 2026 Pickut Technologies, Inc. · All rights reserved.
MathOtter™ is a trademark of Pickut Technologies, Inc.