Help Center
Community
Report a Problem
Sign in
Menu
Help Center
Community
Report a Problem
Sign in
How can we help?
Khan Academy Help Center
Common Questions & Resources
Exercise and Video questions
Issues with Exercises
Issues with Exercises
Why did I get the problem wrong when entering the correct math expression?
Why am I getting the problem wrong when entering the correct answer?
How do I report a mistake or issue with an exercise?
How do I enter math symbols in an exercise?