Hi Sisira,

That's a great idea! That will be quite helpful. Hopefully the Khan Team will take your suggestion :)

Hi Sisira,

Here's a few resources that you might find to be helpful:

https://www.erikthered.com/tutor/facts-and-formulas-0.pdf

https://blog.prepscholar.com/critical-sat-math-formulas-you-must-know

This is one of the best resources for Math Formula https://www.andlearning.org/math-formula/ here you can check math formula according to class and chapter.