五年级数学上册小数乘法简便计算精选 18Word下载.docx

五年级数学上册小数乘法简便计算精选 18Word下载.docx

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0.98

9.21×

999＋9.210.864×

11－0.864

5.2×

2500.73×

99

0.5×

4.21×

201.2×

104

0.25×

6.85×

406.5×

5.9＋3.5×

5.9

1.6×

2.96＝______×

（0.15×

4）＝（______×

5.3×

3.6＋4.7×

3.6＝（______＋______）×

0.437×

0.04101×

0.72

2.95×

9＋2.950.111×

101－0.111

1.2×

250.44×

101

0.05×

6.83×

2001.2×

1001

7.52×

0.042.3×

9.1＋7.7×

9.1

6.7×

0.89＝______×

250×

（0.38×

7.8×

4.3＋2.2×

4.3＝（______＋______）×

0.186×

8101×

0.68

1.35×

9999＋1.350.135×

10001－0.135

250.79×

5.76×

2001.1×

0.19×

408×

6.7＋2×

6.7

6.5×

3.4＝______×

（0.28×

0.4）＝（______×

1.7×

5.3＋8.3×

5.3＝（______＋______）×

0.78×

0.125×

0.43

4.13×

9999＋4.130.159×

10001－0.159

2.4×

250.71×

6.03×

2002.3×

103

1.09×

0.44.2×

1.1＋5.8×

1.1

7.75＝______×

（0.68×

40）＝（______×

2.7×

7.8＋7.3×

7.8＝（______＋______）×

0.861×

80099×

0.13

7.84×

9999＋7.840.636×

10001－0.636

3.6×

250.15×

102

0.21×

2002.1×

1004

5.24×

41.5×

8.7＋8.5×

8.7

1×

6＝______×

（0.77×

9.5×

6.2＋0.5×

6.2＝（______＋______）×

0.422×

50×

0.2999×

0.57

9.15×

999＋9.150.976×

101－0.976

6.4×

250.68×

999

2.89×

0.21.5×

4.14×

407.8×

6.7＋2.2×

5.8＝______×

（0.27×

9.7×

3.3＋0.299999999999999×

3.3＝（______＋______）×

0.801×

8099×

0.96

8.19×

9＋8.190.975×

101－0.975

0.0250.13×

9.87×

0.021.5×

2.5×

6.61×

409.7×

1.2＋0.299999999999999×

1.2

4.7×

8.36＝______×

（0.93×

7.6＋8.8×

7.6＝（______＋______）×

0.684×

12.5×

0.899×

0.74

3.16×

999＋3.160.345×

11－0.345

2500.57×

4.42×

0.022.4×

9.57×

47.6×

7.4＋2.4×

7.4