I'm a Canadian 8th Grade student and I have a upcoming math timed math exam in late January to enter into a prestigious high school program. However, there is practically no information on how to prepare for this exam, so I decided to just generally learn/review math on Khan Academy(which is the best online learning platform in my opinion). I'm not 100% sure of this but I heard(and have noticed myself) that Khan Academy math elementary courses are 1 grade more advanced than the Canadian math curriculum for that grade. From what little material I have to prepare, the questions seem pretty hard(though this was back when you had to hand in a handwritten math exercise and got as much time as you want to work on it rather than a timed math-exam) and Gr.9(Khan Gr.8) level or even Khan high school level.
I only have about 20 days to prepare and 2 Khan Academy courses to get through. How do I "speedrun" or quickly but very effectively make the most of these courses. I also might have to take segments of high school courses.
Also, will just reading Khan articles affect your learning? Reading articles definitely allows me to grasp the concept much faster.
Tips and advice would be greatly appreciated! Thanks in advance!