In that case I recommend for...
Comprehension: READ READ READ.
For some reason i discovered that my mind is encouraged to actually read (i cant skim :/) the super long passages after reading the q.s? no wait - it depends on the person. XD
Maths: Go over your yr 8 maths txtbook, do exercises
Analytical writing: Make sure you just know the TEEL structure and how to write an essay. I think for essays it doesn't really matter if you don't finish it on time, as long as it looks like you can write from the very start --> intro + first few paragraphs (not to say that finishing would be even better, just dont stress with time limit as much as non writing parts)
Creative writing: Practice writing stories under 15 minutes, try memorise lines where you have used good metaphors and stuff if you're not really good with writing on the spot. Or write a full story that sort of has a general theme where you can sort of just rearrange it a bit to fit with the prompt on the day.
I think that with these writing tasks though, usually just going with the flow and writing your very best on that day will be enough if you're a good enough writer.
Numerical Reasoning: AMC papers and simple number pattern exercises, sudoku?
Verbal reasoning: go on this site -
http://www.majortests.com they have heaps of practice tests for comprehension and also word lists.
This site is pretty handy too (try find your weaknesses and work with them):
http://www.education.vic.gov.au/aboutschool/enrolling/selectentry/tests.htm Or if you can be stuff wasting money on preparation, do that Henderson program thing (most people who do it are successful at the end) -
http://www.hendersons.com.au/Usually, if you're a maths person you'll do fine with numerical and maths (maths if you practice). And if you're naturally englishy and really bright you'll do good with verbal and comprehension (I think comprehension is for fast readers/workers who actually know how to 'skim'). And if you just like to memorise PLUS write good you'll ace the writing tasks.
They more so accept people who are well rounded at everything or strengths are more headed towards in English which is obvious since only 2 of the tests are maths linked and all the others are English. Most people who get an average for maths may still get in or by that 5% rule, those who get averages for comprehension or a writing task that isn't compensated by any other English ones probably won't. And if you're trying out for Macrob, make sure you get at least one superior and one above average for maths and numerical, cause then you'll be accepted to sit the accelerated maths test and get to do methods in year 11 if you pass.
Hope that helps. Good luck!
PS. Staying home the day before helps
It might not be that "major" and stuff, but an extra 24 hrs could mean a lot.