The primary goal of PIAAC's numeracy assessment is to evaluate basic mathematical and computational skills that are considered fundamental for functioning in everyday work and social life. In the PIAAC numeracy framework, numeracy is defined as:
"the ability to access, use, interpret, and communicate mathematical information and ideas, to engage in and manage mathematical demands of a range of situations in adult life."
PIAAC numeracy assessment items (a) cover as many aspects as are defined in the framework, (b) are, as much as possible, authentic and culturally appropriate, (c) cover different levels of ability, and (d) are nationally adapted to use the standard measuring systems of the participating country. New items in paper-and-pencil and computer formats have been developed, and items from ALL and IALS will be used as well. For descriptions of numeracy tasks that are associated with PIAAC scores and achievement levels, click here.