Here, I decided to include a Google Presentation guide on the fastest solutions for Understand. I am still working on it, so it may take some time... and a lot of screenshots.

Still work in progress!

https://docs.google.com/presentation/d/18adLqkPJOzryvOWOpi7oEIp8-SxFi9rTAf8Fkd3eFFM/edit?usp=sharing