\documentclass[french,xcolor={table,svgnames}]{beamer}
\usefonttheme[onlymath]{serif}
\setbeamertemplate{navigation symbols}{}
\usepackage{babel}
\usepackage{ProfCollege91}
\begin{document}
\QFlash[Numerique,Heure]{061549/%
  Ajoute \Temps{;;;;;30}/%
  Ajoute \Temps{;;;1}/%
  Ajoute \Temps{;;;;45}/%
  Soustrais \Temps{;;;;15}%
  }
\end{document}