五年级数学上册小数乘法简便计算精选 55Word文档格式.docx

五年级数学上册小数乘法简便计算精选 55Word文档格式.docx

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1.48×

9＋1.480.263×

10001－0.263

3.6×

2.50.93×

101

0.5×

8.46×

2001.1×

1005

2.5×

5.51×

0.049.8×

4.4＋0.199********9999×

4.4

2.1×

2.36＝______×

250×

（0.4×

4）＝（______×

8.6×

1.3＋1.4×

1.3＝（______＋______）×

0.945×

0.025×

40101×

0.75

3.11×

999＋3.110.378×

1001－0.378

7.2×

250.16×

999

0.05×

1.2×

21.3×

1001

7.97×

0.042.7×

8.9＋7.3×

8.9

5.1×

3.19＝______×

（0.09×

0.04）＝（______×

4.4×

7.5＋5.6×

7.5＝（______＋______）×

0.336×

12.5×

8999×

0.66

1.54×

999＋1.540.631×

1001－0.631

5.6×

0.250.34×

2.2×

0.022.3×

102

4.43×

43.4×

7.6＋6.6×

7.6

5.2×

0.76＝______×

（0.97×

5.9＋6.4×

5.9＝（______＋______）×

0.915×

0.899×

0.49

2.42×

999＋2.420.128×

10001－0.128

3.2×

2500.94×

1002

0.55×

22.1×

104

8.94×

48.7×

7.9＋1.3×

7.9

0.2×

4.52＝______×

（0.71×

40）＝（______×

2.6＋4.8×

2.6＝（______＋______）×

0.901×

0.11

8.99×

999＋8.990.923×

101－0.923

8×

0.250.25×

99

7.37×

0.21.3×

4.83×

4006.9×

7.3＋3.1×

7.3

9.21＝______×

（0.35×

4.8×

9.3＋5.2×

9.3＝（______＋______）×

0.979×

800101×

0.43

9.59×

999＋9.590.723×

101－0.723

0.0250.92×

9.66×

0.021.5×

103

9.9×

4000.2×

6.2＋9.8×

6.2

0.6×

1.4＝______×

（0.54×

8.2×

3.4＋1.8×

3.4＝（______＋______）×

0.115×

801001×

0.22

5.33×

9＋5.330.921×

11－0.921

0.250.29×

998

4.99×

201.3×

4.03×

0.49.5×

8.4＋0.5×

8.4

0.8×

8.89＝______×

（0.16×

0.4）＝（______×

3.4×

3.7＋6.6×

3.7＝（______＋______）×

0.759×

50×

0.02101×

0.38

1.11×

9＋1.110.664×

101－0.664

0.250.61×

6.02×

21.5×

0.3×

4000.9×

2.9＋9.1×

2.9