一、直接写出得数。
$7\div0.07=$ ________ $7.23 + 4.97=$ ________ $2.03\times0.4\times0.1=$ ________
$0.43\times0.3=$ ________ $1.6\times0.03=$ ________ $(4.6 + 1.4)\times0.9=$ ________
$5 - 2.7=$ ________ $5.63\div0.563=$ ________ $4.8 - 4.8\div4=$ ________
$0.6\times0.5=$ ________ $0.35\times8=$ ________ $2.5\times1.69\times0.04=$ ________
$0.8\times1.25=$ ________ $1.5\div0.05=$ ________ $72\div(1.3 - 0.5)=$ ________
$11.2\div8=$ ________ $2.34\times5=$ ________ $5.3\times1.1 - 0.53=$ ________
$4.9 + 5.31=$ ________ $0.13\times7=$ ________ $0.46\times98 + 0.46\times2=$ ________
$7\div0.07=$ ________ $7.23 + 4.97=$ ________ $2.03\times0.4\times0.1=$ ________
$0.43\times0.3=$ ________ $1.6\times0.03=$ ________ $(4.6 + 1.4)\times0.9=$ ________
$5 - 2.7=$ ________ $5.63\div0.563=$ ________ $4.8 - 4.8\div4=$ ________
$0.6\times0.5=$ ________ $0.35\times8=$ ________ $2.5\times1.69\times0.04=$ ________
$0.8\times1.25=$ ________ $1.5\div0.05=$ ________ $72\div(1.3 - 0.5)=$ ________
$11.2\div8=$ ________ $2.34\times5=$ ________ $5.3\times1.1 - 0.53=$ ________
$4.9 + 5.31=$ ________ $0.13\times7=$ ________ $0.46\times98 + 0.46\times2=$ ________
答案:
100 12.2 0.0812
0.129 0.048 5.4
2.3 10 3.6
0.3 2.8 0.169
1 30 90
1.4 11.7 5.3
10.21 0.91 46
二、算一算,填一填。
$7.4\times\begin{matrix}6.2\\5.7\\8\\4.8\end{matrix}=$ $\begin{matrix}\_\_\_\_\_\\\_\_\_\_\_\\\_\_\_\_\_\\\_\_\_\_\_\end{matrix}$ $8.7\times\begin{matrix}2.5\\6.3\\5.6\\9\end{matrix}=$ $\begin{matrix}\_\_\_\_\_\\\_\_\_\_\_\\\_\_\_\_\_\\\_\_\_\_\_\end{matrix}$
$7.4\times\begin{matrix}6.2\\5.7\\8\\4.8\end{matrix}=$ $\begin{matrix}\_\_\_\_\_\\\_\_\_\_\_\\\_\_\_\_\_\\\_\_\_\_\_\end{matrix}$ $8.7\times\begin{matrix}2.5\\6.3\\5.6\\9\end{matrix}=$ $\begin{matrix}\_\_\_\_\_\\\_\_\_\_\_\\\_\_\_\_\_\\\_\_\_\_\_\end{matrix}$
答案:
45.88 42.18 59.2 35.52
21.75 54.81 48.72 78.3
三、列竖式计算。
$29\times3.4=$ ________ $32.8\times19=$ ________ $1.4\times35=$ ________

$5.74\div41=$ ________ $1.95\times2.5=$ ________ $2.1\div0.84=$ ________
$29\times3.4=$ ________ $32.8\times19=$ ________ $1.4\times35=$ ________
$5.74\div41=$ ________ $1.95\times2.5=$ ________ $2.1\div0.84=$ ________
答案:
= 98.6 623.2 49
0.14 4.875 2.5
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