Cho phép tính:
\[\begin{array}{l} \times \begin{array}{*{20}{c}}{\,\,\,\,35}\\{\underline {\,\,\,\,\,\,\,\,14\,\,\,\,} }\end{array}\\\,\,\,\underline {\begin{array}{*{20}{c}}{140}\\{\,\,\,\,\,\,\,35\,\,\,\,\,}\end{array}} \\\,\,\,\,\,\,\,175\end{array}\]
Phép tính trên đúng hay sai?