五年级数学上册小数乘法简便计算精选 81Word下载.docx

五年级数学上册小数乘法简便计算精选 81Word下载.docx

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8.88×

99＋8.880.277×

101－0.277

3.2×

0.0250.58×

998

0.05×

9.11×

22.1×

103

2.5×

1.67×

0.40.6×

9.6＋9.4×

9.6

9.7×

1.38＝______×

0.025×

（0.66×

0.4）＝（______×

9.2×

2.5＋0.799999999999999×

2.5＝（______＋______）×

0.247×

12.5×

80101×

5.17×

9＋5.170.691×

11－0.691

2×

0.0250.69×

0.5×

1.59×

0.022.2×

1002

5.25×

45.7×

3.5＋4.3×

3.5

8.2×

6.52＝______×

25×

（0.29×

400）＝（______×

2.8×

8.9＋7.2×

8.9＝（______＋______）×

0.891×

500×

0.2999×

0.15

6.24×

9＋6.240.442×

101－0.442

6.8×

2500.55×

999

5.81×

22.5×

1004

0.6×

46.7×

1.9＋3.3×

1.9

3.4×

9.91＝______×

（0.56×

3.7×

8.3＋6.3×

8.3＝（______＋______）×

1.25×

81001×

0.81

3.77×

999＋3.770.393×

11－0.393

6×

0.250.61×

102

7.66×

0.22.5×

105

2.84×

409.3×

8.4＋0.699999999999999×

8.4

0.8×

9.43＝______×

250×

（0.92×

1.4×

5.6＋8.6×

5.6＝（______＋______）×

0.815×

0.19

1.63×

99＋1.630.348×

101－0.348

4×

250.23×

1.65×

0.22.1×

9.98×

4000.4×

4.8＋9.6×

4.8

6.7×

7.46＝______×

（0.99×

2.2＋3.3×

2.2＝（______＋______）×

0.015×

8101×

0.76

9.54×

999＋9.540.265×

10001－0.265

2.50.73×

4.63×

2001.3×

1003

2.03×

406.5×

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8.7

3.93＝______×

（0.79×

40）＝（______×

5.1×

1.8＋4.9×

1.8＝（______＋______）×

0.253×

0.041001×

0.77

2.74×

9＋2.740.937×

1001－0.937

250.42×

2.14×

0.021.5×

101

8.53×

40.8×

9.3＋9.2×

9.3

1.1×

6.45＝______×

（0.91×

4）＝（______×

6.9×

8.9＋3.1×

0.516×

0.125×

0.47

5.98×

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10001－0.363

1.2×

0.0250.14×

1001

4.95×

0.22.3×

1005

9.15×

0.40.4×

9.5＋9.6×

9.5