五年级数学上册小数乘法简便计算精选 144Word格式文档下载.docx

五年级数学上册小数乘法简便计算精选 144Word格式文档下载.docx

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0.8×

0.250.67×

102

0.05×

2.86×

22.5×

1005

0.025×

6.65×

401.4×

2.9＋8.6×

2.9

4.5×

8.34＝______×

25×

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7.9×

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0.038×

50×

0.2101×

0.65

5.53×

99＋5.530.892×

10001－0.892

6×

250.95×

99

0.25×

202.5×

8.93×

408.8×

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0.002101×

0.95

7.73×

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11－0.485

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2500.89×

1002

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7.33×

0.21.4×

103

7.2×

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2.8

1.72＝______×

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400）＝（______×

5.7×

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0.274×

500×

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0.94

3.18×

9＋3.180.517×

101－0.517

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999

1.16×

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104

6.44×

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101－0.446

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1001

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8.28×

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0.250.29×

98

5.69×

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9.63×

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999＋7.730.239×

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4.7