五年级数学上册小数乘法简便计算精选 129Word文档格式.docx

五年级数学上册小数乘法简便计算精选 129Word文档格式.docx

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11－0.944

3.6×

0.250.41×

99

0.5×

4.1×

22.5×

1004

2.94×

407.7×

9.1＋2.3×

9.1

7.3×

5.23＝______×

25×

（0.42×

8.3×

5.4＋1.7×

5.4＝（______＋______）×

0.846×

12.5×

0.81001×

0.92

4.86×

9999＋4.860.317×

11－0.317

4.4×

2.50.95×

0.05×

4.06×

21.2×

101

2.5×

2.26×

4000.9×

3.2＋9.1×

3.2

3.9×

5.47＝______×

（0.33×

0.04）＝（______×

8.4＋3.6×

8.4＝（______＋______）×

0.423×

0.125×

0.8999×

0.97

6.35×

99＋6.350.364×

101－0.364

6×

0.250.48×

3.09×

202.5×

1003

9.13×

4000.4×

6.7＋9.6×

6.7

5.6×

7.15＝______×

250×

（0.2×

4）＝（______×

6.2×

2.7＋3.8×

2.7＝（______＋______）×

0.097×

1.25×

80999×

0.57

2.45×

999＋2.450.851×

101－0.851

4.8×

2.50.33×

998

8.79×

22.1×

102

7.9×

0.47.8×

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2.2

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0.4）＝（______×

1.2×

9.2＋8.8×

9.2＝（______＋______）×

0.241×

0.00299×

0.23

5.64×

999＋5.640.588×

101－0.588

2500.26×

3.94×

202.1×

105

0.025×

1.63×

0.42×

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5.4

6.5×

9.16＝______×

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400）＝（______×

8.5×

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6.1＝（______＋______）×

0.961×

500×

0.02999×

0.11

8.89×

9999＋8.890.592×

10001－0.592

3.2×

0.250.15×

9.14×

201.3×

1001

2.71×

404.7×

7.9＋5.3×

7.9

2.1×

1.39＝______×

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8.4×

9.2＋1.6×

0.15×

0.21001×

2.58×

9＋2.580.686×

1001－0.686

4×

0.0250.85×

5.74×

202.2×

7.39×

0.46.8×

4.2＋3.2×

4.2

4.6×

6.96＝______×

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2.6＋8.8×

2.6＝（______＋______）×

0.572×

0.2999×

0.82

3.36×

9999＋3.360.899×

10001－0.899

2500.85×

9.44×

0.22.5×

6.7×

41.1×

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0.272×

8099×

0.98

1.13×

9999＋1.130.998×

1001－0.998

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0.250.78×

6.26×

1005

407×

8.3＋3×

8.3