五年级数学上册小数乘法简便计算专项练习189文档格式.docx
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7.9+1.9×
7.9
3.81=______×
250×
(0.15×
4)=(______×
3.6×
1.7+6.4×
1.7=(______+______)×
0.232×
0.025×
40999×
0.81
3.95×
999+3.950.664×
11-0.664
2×
250.17×
101
2.19×
0.022.3×
1001
2.86×
0.47.2×
3.6+2.8×
3.6
9.6×
1.63=______×
25×
(0.88×
6.2×
2.1+3.8×
2.1=(______+______)×
0.814×
500×
0.2101×
0.31
9.65×
9+9.650.425×
11-0.425
8×
2.50.25×
8.13×
0.21.1×
1004
0.22×
48.7×
8.4+1.3×
8.4
8.3×
7.43=______×
(0.92×
0.04)=(______×
5.9×
3.8+4.1×
3.8=(______+______)×
0.347×
0.04101×
0.76
2.98×
9+2.980.853×
1001-0.853
2.50.56×
98
2.08×
22.4×
0.47×
4006.7×
5.2+3.3×
5.2
7×
4.59=______×
(0.55×
0.4)=(______×
3.7+7.9×
3.7=(______+______)×
0.537×
1.25×
800101×
0.57
1.69×
999+1.690.842×
11-0.842
2.8×
0.0250.25×
0.5×
1.93×
0.045.2×
7.2+4.8×
7.2
1×
2.05=______×
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400)=(______×
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2.8+8.2×
2.8=(______+______)×
0.175×
50×
0.99
1.91×
9999+1.910.185×
11-0.185
6×
2500.38×
99
8.8×
0.021.5×
102
0.42.6×
2.3+7.4×
2.3
4.2×
8.55=______×
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6.3×
9.8+3.7×
9.8=(______+______)×
0.257×
0.125×
8101×
4.71×
9999+4.710.145×
1001-0.145
4.8×
0.250.38×
7.64×
2001.2×
7.96×
4002.3×
7.5+7.7×
7.5
0.3×
8.1=______×
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3.5×
4.9+6.5×
4.9=(______+______)×
0.113×
0.21001×
0.87
3.42×
999+3.420.476×
10001-0.476
7.6×
250.31×
9.07×
2002.4×
2.34×
0.042.2×
3.7+7.8×
3.7
6.08=______×
(0.22×
5.1×
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1.2=(______+______)×
0.411×
0.81001×
0.59
5.73×
99+5.730.923×
11-0.923
0.4×
2500.29×
1.18×
21.1×
1005
8.27×
49.6×
8.6+0.399999999999999×
8.6
8.4=______×
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1.1×
1.8+8.9×
1.8=(______+______)×
0.823×
4001001×
0.94
8.21×
99+8.210.954×
1001-0.954
2.50.27×
7.7×
201.5×
104
4.12×
41.6×
9.4+8.4×
9.4
2.4×
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7.1×
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1.5=(______+______)×
0.872×
9.81×
99+9.810.621×
11-0.621
250.26×
998
2.04×
2002.5×
2.46×
4009.8×
7.3+0.199********9999×
7.3
9.2×
9.86=______×
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7.8×
7.4+2.2×
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0.381×
0.002101×
9999+1.180.559×
11-0.559
7.2×
0.250.68×
8.78×
0.22.5×
46.8×
6.5+3.2×
6.5
4.07=______×
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1.9×
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2.7=(______+______)×
0.808×
80101×
0.16
2.17×
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11-0.638
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0.0250.93×
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1.54×
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4.95×
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8.3+6.9×
8.3
6.99=______×
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0.46
8.42×
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11-0.285
2500.55×
6.38×
1003
7.41×
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0.79
6.86×
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0.250.28×
9.79×
0.021.3×
3.36×
4009.2×
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4.9