五年级数学上册小数乘法简便计算专项练习254Word下载.docx

五年级数学上册小数乘法简便计算专项练习254Word下载.docx

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4.11×

45.7×

1.5＋4.3×

1.5

2.9×

0.81＝______×

0.025×

（0.15×

0.4）＝（______×

7.2×

8.9＋2.8×

8.9＝（______＋______）×

0.711×

0.4999×

0.72

9.32×

999＋9.320.797×

1001－0.797

7.6×

0.0250.47×

98

0.5×

7.15×

202.2×

0.23×

4006.3×

8.1＋3.7×

8.1

3.3×

2.88＝______×

25×

（0.98×

7.5×

3.5＋2.5×

3.5＝（______＋______）×

0.054×

400999×

0.53

3.51×

999＋3.510.673×

1001－0.673

4×

0.250.24×

99

4.57×

0.22.2×

1002

4.66×

43.8×

9.7＋6.2×

9.7

7.25＝______×

（0.43×

3.4×

2.1＋6.6×

2.1＝（______＋______）×

0.384×

0.125×

80999×

0.69

5.31×

99＋5.310.488×

1001－0.488

1.6×

2.50.37×

9.08×

0.021.5×

104

0.09×

0.040.2×

1.2＋9.8×

1.2

2.8×

8.47＝______×

（0.13×

400）＝（______×

8.1×

9.2＋1.9×

9.2＝（______＋______）×

0.308×

5×

0.21001×

0.82

4.83×

99＋4.830.727×

1001－0.727

4.4×

2.50.34×

101

1.26×

22.5×

1001

6.21×

4005.8×

4.7＋4.2×

4.7

6.65＝______×

（0.01×

3.2×

1.8＋6.8×

1.8＝（______＋______）×

0.974×

0.02999×

0.74

7.91×

9＋7.910.338×

11－0.338

4.8×

2500.87×

999

8.67×

0.021.3×

3.75×

2.5＋3.7×

2.5

5.21＝______×

（0.2×

0.04）＝（______×

2.6×

4.8＋7.4×

4.8＝（______＋______）×

0.034×

4099×

0.56

8.56×

99＋8.560.871×

11－0.871

5.6×

250.36×

0.022.3×

6.5×

45.3×

2.5＋4.7×

6＝______×

（0.6×

7.4×

3.7＋2.6×

3.7＝（______＋______）×

0.243×

0.0299×

0.78

3.17×

9＋3.170.254×

11－0.254

6.8×

2500.16×

3.44×

202.5×

7.88×

0.044×

9.2＋6×

9.2

1.5×

8.73＝______×

1.7×

6.8＋8.3×

6.8＝（______＋______）×

0.564×

0.08999×

0.87

999＋4.660.145×

10001－0.145

0.250.61×

0.98×

202.4×

7.16×

0.40.1×

8.6＋9.9×

8.6

8.6×

8.33＝______×

（0.94×

40）＝（______×

8.2×

3.6＋1.8×

3.6＝（______＋______）×

0.296×

40101×

0.16

4.64×

9999＋4.640.466×

10001－0.466

2.50.96×

0.56×

0.022.4×

9.52×

406.8×

7.6＋3.2×

7.6

7×

6.01＝______×

（0.04×

9.3＋7.2×

9.3＝（______＋______）×

0.133×

50×

0.00299×

0.46

2.19×

99＋2.190.822×

10001－0.822

0.0250.51×

3.18×

1005

4.24×

0.046.4×

1.5＋3.6×

1.2×

2.56＝______×

（0.76×

3.5＋5.6×

0.055×

8101×

0.66

6.56×

9＋6.560.497×

1001－0.497

998

6.35×

22.1×

7.75×

408.5×

1.2＋1.5×

3×

2.4＝______×

（0.1×

5.8×

2.3＋4.2×

2.3＝（______＋______）×

0.495×

499×

0.86

6.94×

99＋6.940.971×

1001－0.971

2×

8.5×

0.021.1×

4.94×

0.49.5×

4.4＋0.5×

4.4

4.18＝______×

（0.25×

6.7＋6.7×

6.7＝（______＋______）×

0.74×

0.49

7.41×

9999＋7.410.125×

10001－0.125

3.6×

0.0250.26×

1.49×

0.22.4×

105

1.36×

0.045.7×

3.3＋4.3×

3.3

0.02＝______×

0.2