五年级数学上册小数乘法简便计算14Word格式文档下载.docx

五年级数学上册小数乘法简便计算14Word格式文档下载.docx

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2.50.85×

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4.2×

201.2×

101

0.25×

0.61×

408.3×

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2500.21×

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105

1.23×

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202.4×

104

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9.82×

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