From the NAPLAN Resources website:
"A large number of practice questions are available from this Northern Territory website. Answers are provided as well as difficulty levels for each question. Great practice for NAPLAN 2008, years 3 , 5 , 7 and 9, although they have been developed for a previous testing system."
http://www.deet.nt.gov.au/education/teaching_and_learning/assessment_sta...