Start with the notes and formulas, then move on to the resources.
First, there are instructional videos, Then there are quizzes to check your understanding.
Each quiz contains it's own videos with solutions to each question.
Once you're comfortable, move on to the extra practice questions with full solutions.
Need more practice? There are worksheets with answers.
Even more practice? There are also sample exam questions.
Finally, there is a study guide for exam prep.
Calculator Icon by Connor Fowler from the Noun Project