五年级数学上册小数乘法简便计算精选 125Word文件下载.docx

五年级数学上册小数乘法简便计算精选 125Word文件下载.docx

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2.35×

9999＋2.350.188×

101－0.188

1.2×

0.0250.99×

102

0.5×

9.95×

0.021.2×

104

0.85×

0.41.8×

2.8＋8.2×

2.8

2×

8.01＝______×

250×

（0.4×

400）＝（______×

5.8×

2.9＋4.2×

2.9＝（______＋______）×

0.574×

0.025×

4099×

0.86

7.17×

99＋7.170.753×

101－0.753

6×

2500.64×

0.05×

4.77×

21.2×

105

2.5×

5.09×

0.45.5×

9.1＋4.5×

9.1

7.2＝______×

25×

（0.47×

0.04）＝（______×

8.3×

2.5＋1.7×

2.5＝（______＋______）×

0.709×

500×

0.2101×

0.76

2.73×

999＋2.730.492×

1001－0.492

8×

250.44×

99

0.26×

21.4×

0.77×

4009.9×

7.4＋.0999********×

7.4

3.52＝______×

（0.24×

6.4＋4.8×

6.4＝（______＋______）×

0.68×

12.5×

800999×

0.34

3.11×

9＋3.110.239×

101－0.239

4.8×

2500.17×

1.51×

2002.1×

1005

3.2×

0.044×

5.1＋6×

5.1

2.9×

0.22＝______×

（0.62×

4.7×

5.8＋5.3×

5.8＝（______＋______）×

0.783×

0.125×

80101×

0.75

5.17×

999＋5.170.591×

11－0.591

0.8×

0.0250.68×

999

5.75×

0.22.5×

1004

5.92×

405.9×

8.1＋4.1×

8.1

8.5×

0.35＝______×

（0.79×

4）＝（______×

4.1×

2.2＋5.9×

2.2＝（______＋______）×

0.508×

8099×

0.66

99＋4.770.611×

10001－0.611

2500.36×

0.36×

0.22.4×

101

6.72×

44.2×

4.7＋5.8×

4.7

5.9×

4.28＝______×

（0.58×

8.4×

5.8＋1.6×

0.861×

0.04101×

0.92

3.37×

9999＋3.370.272×

10001－0.272

1.6×

2.50.67×

1002

4.37×

202.1×

4.25×

41.5×

9.2＋8.5×

9.2

5.1×

6.92＝______×

（0.15×

1.3＋4.8×

1.3＝（______＋______）×

0.234×

499×

7.89×

99＋7.890.895×

10001－0.895

4.4×

0.250.11×

0.92×

0.21.2×

9.9×

402.4×

1.8＋7.6×

1.8