Calcul (nombres naturels)

$$\begin{array}{rrrrrr} & {\small\color{red}{5}} & {\small\color{red}{9}} & {\small\color{red}{17}} & {\small\color{red}{}}\\ & \color{gray}{6} & \color{gray}{0} & \color{gray}{7} & 9\\ - & 5 & 2 & 8 & 2\\ \hline & 0 & 7 & 9 & 7\\ \end{array}$$

Nouvel exemple