Contact
Found a bug, thought of a feature, or want to tell us how you use PEMDAS Practice in class? Send a note.
Send us feedback
Use the floating feedback button at the bottom-right of any page to send a quick note, or email us directly:
Reporting a bug
If an expression produces the wrong answer, a step isn't accepted when it should be, or the app behaves unexpectedly, please tell us:
- The expression (e.g.
3 + 2 × (4 − 1)²) - What you did and what you expected to happen
- Your browser and device type
Email that to the address above and we'll investigate.