In this exercise, you are asked to have a conversation with a partner concerning the phone number of a student on the given page of the school directory. In this case, the numbers are sometimes written as a combination of digits over 10, as opposed to the singular digit format that is shown in the green vocabulary box at the top of the page.

For example, I might ask my partner about the telephone number of Jaime Ortega but instead of *trece* I might “accidentally” say *catorce*, which my partner would correct with the entire correct number.