Simultaneous interpreters cover the most urgent linguistic needs at conference settings, and often face arduous working conditions, with speakers reading very dense and readily-made statements at an outstanding speed. Figures rank among the elements that that can hinder and even collapse their information processing methods. Numbers are recurrent in human speech and have a pivotal role in supporting the logic and reasoning of a speech. In this work, a series of carefully crafted and organized materials will be offered for an interpreting training context. These training materials consist of short scripts with a high number ratio, as well as a self-correction grid and a questionnaire for students to analyze their performance.