Задание
Выберите правильный вариант записи при умножении круглого на двузначное число:
- \(\begin{equation*}\begin{array}{ll} \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \begin{array}{ccccc} {}_{\times}2 & 5 & 5 & 0 & 0 \\ \end{array} \\ \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \frac{\begin{array}{ccccc} {\,} & {\,2} & 3 & \, & \\ \end{array}}{\begin{array}{ccccc} {} & {} & {} & {} & {}\end{array}} \\ \end{array}\end{equation*}\)
- \(\begin{equation*}\begin{array}{ll} \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \begin{array}{lllll} {}_{\times}2 & 5 & 5 & 0 & 0 \\ \end{array} \\ \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \frac{\begin{array}{lllll} {\, \, \,} & {\, \, \,} & {\, \, \, \,} & 2 & 3 \\ \end{array}}{\begin{array}{lllll} & & & & \\ \end{array}} \\ \end{array}\end{equation*}\)
- \(\begin{equation*}\begin{array}{ll} \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \begin{array}{lllll} {}_{\times}2 & 5 & 5 & 0 & 0 \\ \end{array} \\ \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, \frac{\begin{array}{lllll} {2\,} & 3 & & {\,\,\,\,} & {\,\,\,\,} \\ \end{array}}{\begin{array}{lllll} {} & {} & {} & {} & {} \\ \end{array}} \\ {} \end{array}\end{equation*}\)