五年级数学上册小数乘法简便计算27Word文件下载.docx

五年级数学上册小数乘法简便计算27Word文件下载.docx

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0.081001×

0.48

8.89×

999＋8.890.415×

101－0.415

6×

250.49×

1001

0.5×

5.92×

21.1×

102

4.56×

49.1×

2.6＋0.9×

2.6

5.6×

8.28＝______×

2.5×

（0.38×

4）＝（______×

2.9×

6.5＋7.1×

6.5＝（______＋______）×

0.802×

0.125×

0.08999×

0.77

3.33×

9＋3.330.141×

101－0.141

0.0250.88×

6.77×

0.22.1×

101

0.22×

42.1×

9.5＋7.9×

9.5

6.4×

0.8＝______×

25×

（0.59×

4.8×

1.6＋5.2×

1.6＝（______＋______）×

0.866×

0.04999×

0.67

5.34×

999＋5.340.292×

1001－0.292

2×

0.250.29×

999

0.79×

22.2×

1005

3.1×

43.4×

2.9＋6.6×

2.9

1.6×

7.5＝______×

（0.18×

6.3×

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2.6＝（______＋______）×

0.344×

0.021001×

0.23

4.49×

99＋4.490.334×

10001－0.334

0.0250.43×

6.9×

2002.5×

104

8.18×

402.3×

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4.6

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250×

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0.69

1.53×

9＋1.530.228×

101－0.228

2.8×

250.56×

0.26×

22.1×

9.44×

4009×

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4.9

2.3×

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40）＝（______×

7.2×

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5.5＝（______＋______）×

0.428×

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80099×

0.14

1.64×

9999＋1.640.649×

11－0.649

250.42×

6.01×

2001.1×

7.84×

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0.821×

0.041001×

0.55

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11－0.955

0.0250.22×

6.92×

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4.99×

4004.6×

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3.6

9.3×

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0.4999×

0.56

9.56×

9999＋9.560.331×

1001－0.331

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0.63×

2001.4×

5.75×

0.047×

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7.7

4.2×

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0.74

9.91×

9999＋9.910.144×

11－0.144

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105

4.28×

405.6×

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9.5×

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0.58

9.95×

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101－0.782

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250.54×

5.55×

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7.27×

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2.8

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0.33

4.59×

999＋4.590.757×

1001－0.757

2.4×

2500.55×

7.62×

201.5×

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0.37

1.63×

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10001－0.785

0.0250.73×

1002

4.89×

202.3×

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1001－0.583

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4.57×

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0.57

5.91×

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1001－0.743

0.250.83×

9.51×

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6.6×

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0.31

9.35×

9＋9.350.717×

11－0.717

250.46×

6.89×

0.021.1×

9.71×

0.049.3×

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8.7

7.2＝______×

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7.1×

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0.486×

0.15

4.68×

9＋4.680.454×

101－0.454

2500.66×

1.79×

22.4×

6.03×

407.9×

1.8＋2.1×

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5.44＝______×

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7.6×

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0.51

5.51×

9＋5.510.932×

10001－0.932

1.2×

2500.24×

9.65×

9.62×

44.6×

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0.984×

0.002999×

0.96

7.28×

9＋7.280.199×

10001－0.199

2500.21×

4.47×

0.21.2×

400.4×

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3.6＝______×

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0.895×

0.73

5.46×

999＋5.460.185×

101－0.185

2500.79×

3.87×

0.021.5×

3.92×

0.040.4×

3.9＋9.6×

3.9