五年级数学上册小数乘法简便计算专项练习209Word文档格式.docx
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4.1
6.1×
2.31=______×
(0.25×
4)=(______×
2.2×
4.3+7.8×
4.3=(______+______)×
0.875×
0.125×
0.08101×
0.77
9.41×
99+9.410.136×
101-0.136
4×
2500.24×
1001
0.05×
9.73×
202.1×
104
1.43×
0.48.5×
1.1+1.5×
1.1
6×
7.68=______×
25×
(0.92×
40)=(______×
4.1×
7.3+5.9×
7.3=(______+______)×
0.17×
12.5×
80099×
0.41
5.44×
9999+5.440.289×
11-0.289
8×
2.50.48×
101
3.31×
2001.1×
103
6.17×
406.7×
2.8+3.3×
2.8
4.6×
0.63=______×
(0.64×
6.9×
2.7+3.1×
2.7=(______+______)×
0.537×
0.025×
4999×
0.45
8.38×
9999+8.380.231×
1001-0.231
2500.64×
99
2.79×
22.1×
102
8.82×
407.9×
7.9+2.1×
7.9
7.4×
5.69=______×
(0.47×
0.4)=(______×
2.6×
9.8+7.4×
9.8=(______+______)×
0.77×
0.002999×
0.21
2.46×
9999+2.460.699×
10001-0.699
250.65×
999
8.29×
0.021.4×
105
8.3×
0.43.4×
2.4+6.6×
2.4
2.95=______×
(0.19×
7.8×
3.9+2.2×
0.593×
1.25×
0.081001×
0.73
1.55×
99+1.550.474×
101-0.474
0.4×
2.50.49×
998
1.87×
2002.2×
1005
2.65×
48×
6.5+2×
6.5
7×
9.61=______×
(0.5×
9.3×
1.9+0.699999999999999×
1.9=(______+______)×
0.561×
0.52
9+1.250.168×
1001-0.168
250.11×
4.44×
2001.3×
1.49×
4000.8×
7.5+9.2×
7.5
8.4×
0.79=______×
250×
(0.45×
2.3×
1.5+7.7×
1.5=(______+______)×
0.871×
80101×
7.57×
9+7.570.487×
101-0.487
2×
2500.59×
5.58×
22.3×
3.67×
0.41.6×
5.2+8.4×
5.2
5.1×
6.41=______×
(0.85×
5.4×
6.7+4.6×
6.7=(______+______)×
0.889×
0.08999×
0.58
1.41×
9+1.410.347×
10001-0.347
6.8×
2500.74×
6.29×
2002.1×
7.12×
45.6×
2.4+4.4×
4.04=______×
(0.83×
400)=(______×
7.1×
2.4+2.9×
2.4=(______+______)×
0.607×
50×
0.00299×
2.82×
9+2.820.174×
1001-0.174
2500.79×
4.02×
201.1×
1.37×
40.2×
3.3+9.8×
3.3
3×
2.26=______×
(0.49×
1.1+7.8×
1.1=(______+______)×
0.12×
8999×
0.22
9.35×
999+9.350.132×
101-0.132
0.250.38×
4.83×
21.5×
9.08×
4006.9×
8.1+3.1×
8.1
6.7×
8.8=______×
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3.4+3.2×
3.4=(______+______)×
0.168×
0.81
9.16×
999+9.160.888×
101-0.888
0.250.39×
1.34×
1004
8.63×
403.6×
9.8+6.4×
9.8
9.2×
2.69=______×
(0.75×
1.9×
6.8+8.1×
6.8=(______+______)×
0.904×
0.8101×
0.74
6.65×
999+6.650.944×
101-0.944
2.25×
0.21.5×
8.85×
401.4×
2.2+8.6×
2.2
3.6×
6.04=______×
(0.31×
2.7×
7.9+7.3×
7.9=(______+______)×
0.806×
0.0499×
0.63
9.49×
9999+9.490.632×
101-0.632
1.2×
0.250.47×
6.86×
0.22.2×
1.6×
42.8×
8.8+7.2×
8.8
7.57=______×
(0.07×
2.9+0.799999999999999×
2.9=(______+______)×
0.186×
0.37
3.71×
999+3.710.133×
10001-0.133
2500.94×
9.34×
0.022.2×
5×
40.3×
8.9+9.7×
8.9