五年级数学上册小数乘法简便计算精选 37Word文档格式.docx

五年级数学上册小数乘法简便计算精选 37Word文档格式.docx

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9.95×

999＋9.950.298×

10001－0.298

8×

2500.42×

999

7.07×

22.3×

1001

0.25×

0.88×

0.41.7×

6.3＋8.3×

6.3

1.9×

8.91＝______×

0.025×

（0.76×

7.1×

2.9＋2.9×

2.9＝（______＋______）×

0.955×

0.05×

0.299×

7.39×

9＋7.390.931×

11－0.931

0.250.88×

1002

5.95×

0.021.4×

104

8.4×

409.8×

2.3＋0.199********9999×

2.3

5.1×

8.27＝______×

（0.33×

4）＝（______×

4.3×

8.8＋5.7×

8.8＝（______＋______）×

0.014×

1.25×

0.0899×

0.61

9.59×

999＋9.590.194×

1001－0.194

7.6×

2500.72×

998

2.8×

2001.5×

0.55×

4004.5×

2.2＋5.5×

2.2

3×

1.43＝______×

（0.8×

4.7×

9.2＋5.3×

9.2＝（______＋______）×

0.751×

0.125×

800999×

0.29

6.26×

999＋6.260.646×

10001－0.646

3.2×

2.50.51×

101

4.14×

2002.5×

0.21×

0.044.8×

7.8＋5.2×

7.8

9×

8.85＝______×

（0.18×

7.4×

6.9＋2.6×

6.9＝（______＋______）×

0.508×

0.899×

0.14

7.52×

99＋7.520.531×

10001－0.531

2500.19×

7.75×

0.21.3×

1003

3.8×

40.1×

7.9＋9.9×

7.9

5.7×

8.21＝______×

（0.24×

0.4）＝（______×

7.2×

7.2＋2.8×

7.2＝（______＋______）×

0.734×

800101×

0.71

8.56×

99＋8.560.785×

11－0.785

1.6×

250.59×

2.7×

22.1×

103

0.42×

4001.6×

5.8＋8.4×

5.8

6.5×

5.5＝______×

（0.82×

5.3×

1.3＋4.7×

1.3＝（______＋______）×

0.74×

4101×

0.73

3.11×

999＋3.110.645×

101－0.645

4×

0.250.69×

4.61×

0.22.3×

7.15×

0.047.6×

4.2＋2.4×

4.2

5.5×

9.45＝______×

25×

（0.86×

2.1×

2.8＋7.9×

2.8＝（______＋______）×

0.172×

0.4101×

0.79

9.47×

9＋9.470.342×

1001－0.342

5.6×

0.250.21×

9.62×

21.3×

0.6×

0.041.7×

1.2＋8.3×

1.2