Scholastic Aptitude Test (SAT) Resources
The titles are also links to the resources.
Khan Academy SAT Test Prep
Khan Academy provides a variety of lesson resources. Their SAT resources appear to be very thorough. You need to subscribe, but it's free!
"Download and take a real, full-length practice test. Watch videos showing step-by-step solutions to problems you missed or found challenging, and get even more practice with unreleased questions from real SATs provided by College Board. After all that practice, it wouldn't hurt to take the full-length test again so you can get used to the feeling of answering all of the questions correctly."
Varsity Tutors SAT Practice Tests
Varsity Tutors is an American tutoring business. Their website has an SAT section that describes the SAT exams and has many, many practice tests in Writing, Critical Reading and Math. You can create a free account and keep track of progress.
SAT website - CollegeBoard
Here you can register for the exam and do practice tests.
They also show where the testing centres are at this page. Select Australia and the date, for a full list of centres in the country.