题目内容

【题目】口算下面各题.

2.3×0.3= 0.42×0.2= 1.4×0.7=

0.16×0.6= 1.2×0.5= 2×0.45=

【答案】0.69,0.084,0.98,0.096,0.6,0.9.

【解析】

试题分析:根据小数乘法的计算方法进行计算

解:

2.3×0.3=0.69, 0.42×0.2=0.084, 1.4×0.7=0.98,

0.16×0.6=0.096, 1.2×0.5=0.6, 2×0.45=0.9.

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