tính 672 - 521

\(\begin{array}{l}\underline { - \begin{array}{*{20}{c}}{672}\\{521}\end{array}} \\\,\,\,\,151\end{array}\)

\(\begin{array}{l}\underline { - \begin{array}{*{20}{c}}{875}\\{325}\end{array}} \\\,\,\,\,550\end{array}\)

\(\begin{array}{l}\underline { - \begin{array}{*{20}{c}}{528}\\{\,\,\,15}\end{array}} \\\,\,\,\,513\end{array}\)

\(\begin{array}{l}\underline { - \begin{array}{*{20}{c}}{734}\\{614}\end{array}} \\\,\,\,\,120\end{array}\)

\(\begin{array}{l}\underline { - \begin{array}{*{20}{c}}{875}\\{672}\end{array}} \\\,\,\,\,203\end{array}\)

\(\begin{array}{l}\underline { - \begin{array}{*{20}{c}}{567}\\{154}\end{array}} \\\,\,\,\,413\end{array}\)