五年级数学上册小数乘法简便计算精选 38Word文档格式.docx

五年级数学上册小数乘法简便计算精选 38Word文档格式.docx

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0.26

1.26×

9999＋1.260.676×

11－0.676

0.8×

2.50.49×

98

0.05×

0.55×

202.1×

103

0.025×

2.62×

0.041.4×

5.1＋8.6×

5.1

5.8×

5.02＝______×

（0.24×

4）＝（______×

1.3×

3.9＋8.7×

3.9＝（______＋______）×

0.467×

0.5×

0.02999×

0.45

4.24×

99＋4.240.629×

1001－0.629

1.2×

2500.24×

1001

2.06×

202.5×

1005

3.61×

44.6×

4.8＋5.4×

4.8

7.6×

7.25＝______×

2.5×

（0.31×

400）＝（______×

3.4×

3.8＋6.6×

3.8＝（______＋______）×

0.353×

0.00299×

0.92

5.61×

99＋5.610.622×

11－0.622

5.6×

2.50.15×

7.06×

0.022.2×

7.85×

4002.4×

7.2＋7.6×

7.2

0.95＝______×

（0.7×

7.1×

6.2＋2.9×

6.2＝（______＋______）×

0.006×

12.5×

899×

0.77

5.58×

9＋5.580.559×

101－0.559

3.6×

2.50.32×

8×

2002.3×

1003

3.78×

49.4×

2.5＋0.6×

2.5

6.1×

8.85＝______×

（0.18×

6.4×

6.4＋3.6×

6.4＝（______＋______）×

0.623×

0.0899×

0.22

1.69×

9＋1.690.258×

10001－0.258

0.0250.65×

3.14×

22.5×

6.86×

49.9×

7.5＋.0999********×

7.5

4.6×

6.88＝______×

（0.02×

40）＝（______×

6.2×

3.8＋3.8×

0.674×

0.002101×

0.57

1.52×

99＋1.520.256×

10001－0.256

250.94×

5.96×

22.4×

1002

401.1×

5.8＋8.9×

5.8

5.1×

7.91＝______×

（0.92×

8.4×

5.9＋1.6×

5.9＝（______＋______）×

0.243×

80099×

0.98

1.56×

999＋1.560.321×

1001－0.321

0.0250.38×

102

9.01×

202.4×

105

0.62×

0.46.6×

9.7＋3.4×

9.7

9.7×

0.25×

（0.74×

8.5×

4.2＋1.5×

4.2＝（______＋______）×

0.286×

4999×

0.94

7.18×

9＋7.180.686×

10001－0.686

0.250.55×

101

1.72×

1004

3.81×

4005.8×

9.9＋4.2×

9.9