This document provides information about numeracy and counting in Basque. It includes examples of numbering systems from 0 to 29 and from 29 to 0. It also shows word problems that express numbers as sums of tens and ones, such as 15 = 10 + 5. The document frames word problems using letter variables like H for hamar ("ten" in Basque) and B for bat ("one" in Basque).