This addendum was created to reflect the recommendations of the Mathematics Task Force that met in Arizona to make recommendations to the state Board of Education. The Mathematics Task Force recommended that a core curriculum be identified in the Mathematics Proficiency Standards that would be required of all high school students beginning in the ninth grade. The core curriculum is to be the basis for Arizona Instrument To Measure Standards (AIMS) Mathematics with remaining proficiency standards to be taught in a later, more advanced curriculum. This addendum lists all 26 standards and 76 performance objectives to be assessed on AIMS and contains sample questions. (SLD)