Điền số thích hợp vào ô trốnga) 23,56 – 3,7 = …b) 12,67 × 1,2 = …

a)

\[\begin{array}{l} - \underline {\begin{array}{*{20}{c}}{23,56}\\{3,7}\end{array}} \\\,\,\,\,19,86\end{array}\]

b)

\[\begin{array}{l} \times \underline {\begin{array}{*{20}{c}}{\,\,12,67}\\{\,\,\,\,\,\,\,\,\,1,2}\end{array}} \\\,\,\,\,2\,\,\,534\\\,\,\underline {12\,\,\,67\,\,\,} \\\,\,15,204\end{array}\]