五年级数学上册小数乘法简便计算精选 53Word格式.docx

五年级数学上册小数乘法简便计算精选 53Word格式.docx

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5.62×

99＋5.620.822×

10001－0.822

3.2×

2.50.89×

101

0.5×

3.66×

2002.5×

105

0.25×

6.69×

404.6×

1.4＋5.4×

1.4

9.7×

2.25＝______×

（0.34×

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6.5×

8.2＋3.5×

8.2＝（______＋______）×

0.264×

50×

0.02999×

0.73

5.75×

9999＋5.750.631×

101－0.631

7.2×

250.95×

1001

0.05×

3.71×

0.22.1×

104

0.025×

7.53×

4002.8×

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5.1

5×

3.19＝______×

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7.3×

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0.929×

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0.53

5.42×

99＋5.420.647×

101－0.647

7.6×

2500.25×

102

3.16×

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1002

3.17×

407.2×

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2×

7.74＝______×

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0.794×

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0.49

3.34×

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0.250.69×

998

6.56×

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0.61×

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3.4×

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0.856×

40101×

0.24

2.67×

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2500.62×

8.98×

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8.1＋.0999********×

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4.62×

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0.250.67×

99

8.46×

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6.78×

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