一、直接写出得数。
$6\times0.14=$ $0.46 + 3.74=$ $5.6\div4=$
$4.57 + 2.3=$ $5.4\div20=$ $7.01 - 2.1=$
$8.1\div0.9=$ $0.37\times10=$ $4.9 - 0.42=$
$30 - 5.7=$ $7\div14=$ $7.33 - 6.7=$
$15 - 7.9=$ $17\div3.4=$ $3.6\div0.9=$
$7.4\div0.2=$ $9.46 - 5.86=$ $4.29 + 3.8=$
$630\div0.3=$ $6.87 - 0.78=$ $0.67 + 4.36=$
$6\times0.14=$ $0.46 + 3.74=$ $5.6\div4=$
$4.57 + 2.3=$ $5.4\div20=$ $7.01 - 2.1=$
$8.1\div0.9=$ $0.37\times10=$ $4.9 - 0.42=$
$30 - 5.7=$ $7\div14=$ $7.33 - 6.7=$
$15 - 7.9=$ $17\div3.4=$ $3.6\div0.9=$
$7.4\div0.2=$ $9.46 - 5.86=$ $4.29 + 3.8=$
$630\div0.3=$ $6.87 - 0.78=$ $0.67 + 4.36=$
答案:
0.84 4.2 1.4
6.87 0.27 4.91
9 3.7 4.48
24.3 0.5 0.63
7.1 5 4
37 3.6 8.09
2100 6.09 5.03
二、填一填。

答案:
三、计算下面各题,能简算的要简算。
$45.2\times0.8\times4$ $74.6\times1.5\times6.1$ $4.25\times13\times0.5$
$1.25\times25\times64\times0.5$ $1.75\div1.25\times8$ $102\times4.5$
$45.2\times0.8\times4$ $74.6\times1.5\times6.1$ $4.25\times13\times0.5$
$1.25\times25\times64\times0.5$ $1.75\div1.25\times8$ $102\times4.5$
答案:
144.64 682.59 27.625
1000 11.2 459
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