Calcul (nombres naturels)

Objectif 7

Effectuer des multiplications en colonne. Calculer : $$ 495 \cdot 770 $$

Nouvel exemple

$$\begin{array}{rrrrrrr} & {\small\color{orange}{}} & {\small\color{orange}{}} & {\small\color{orange}{}} & {\small\color{orange}{2}} & {\small\color{orange}{6}} & {\small\color{orange}{3}}\\ & {\small\color{blue}{}} & {\small\color{blue}{}} & {\small\color{blue}{}} & {\small\color{blue}{2}} & {\small\color{blue}{6}} & {\small\color{blue}{3}}\\ & {\small\color{red}{}} & {\small\color{red}{}} & {\small\color{red}{}} & {\small\color{red}{}} & {\small\color{red}{}} & {\small\color{red}{}}\\ & & & & & 4 & 9 & 5\\ \cdot & & & & & \color{orange}{7} & \color{blue}{7} & \color{red}{0}\\ \hline & & \color{red}{} & \color{red}{} & \color{red}{} & \color{red}{0} & \color{red}{0} & \color{red}{0}\\ & & \color{blue}{} & \color{blue}{3} & \color{blue}{4} & \color{blue}{6} & \color{blue}{5} & \color{blue}{0}\\ + & & \color{orange}{3} & \color{orange}{4} & \color{orange}{6} & \color{orange}{5} & \color{orange}{0} & \color{orange}{0}\\ \hline & & 3 & 8 & 1 & 1 & 5 & 0\\ \end{array}$$

Nouvel exemple

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