Roger and phlegm;
If I remember correctly, the WOMBAT test was for pure hand-eye coordination, testing your concentration levels over time. I didn't really need to do any sort of Maths test. I went till the first interview stage at Wagga, my pointers would be just be yourself. Read up a little on aviation but I doubt they'll ask you any technical questions as you have no flying experience.
I did have to give them my KDR's and uni/school results as well, which had maths and physics on them.