《2025年同步测控优化设计三年级数学上册人教版增强版》

- 1. $\begin{array}{r}20\\×4\\\hline\end{array}\\\hline $ $\begin{array}{r}200\\×4\\\hline\end{array}\\\hline $ $\begin{array}{r}2000\\×4\\\hline\end{array}\\\hline $
2. $\begin{array}{r}6\\×9\\\hline\end{array}\\\hline $ $\begin{array}{r}60\\×9\\\hline\end{array}\\\hline $ $\begin{array}{r}600\\×9\\\hline\end{array}\\\hline $

答案： 1.
$\begin{array}{r}20\\×4\\\hline 80\end{array}$
$\begin{array}{r}200\\×4\\\hline 800\end{array}$
$\begin{array}{r}2000\\×4\\\hline 8000\end{array}$
2.
$\begin{array}{r}6\\×9\\\hline 54\end{array}$
$\begin{array}{r}60\\×9\\\hline 540\end{array}$
$\begin{array}{r}600\\×9\\\hline 5400\end{array}$