The Conversion Tables are from the back of the Maths Manual.

They convert the raw score to the scale score and provide the associated stanine for the year level, as well as  one year above and one below. The purpose for the multi-years is that each test covers a full two years worth of learning and can be used productively across the three year levels, accomodating the just belows and aboves.

For students who are well below or above the average for their year level i.e.working in a different curric level, it is important to differentiate the testing further and choose the test that matches their learning level, or use the adaptive test.