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Go to Khan Academy's math section and do ALL exercises from grade one and onwards.
by bjourne 6y ago
Go to Khan Academy's math section and do ALL exercises from grade one and onwards.
- sn9 6y agoThis is the most effective route. BetterExplained can be a good supplement. Make sure you know how to learn effectively: check out the Learning How to Learn course on Coursera. If you want to go even deeper than Khan Academy, the Art of Problem Solving books are great.