小数乘法简便计算强烈推荐281文档格式.docx
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0.25×
(400+3)
8×
9.5×
43×
9.9
54×
1.2+5.4×
88
4×
8.8×
8.1-0.88
26×
0.4×
6.5×
1.6×
30×
0.8
7.9×
7.3+7.9×
2.7
25×
0.48×
0.4
0.28×
(300+6)
4.3×
20×
29×
3.3+2.9×
67
0.125
7×
9.1-0.7
93×
3.7×
2.5
1.25×
66×
1.3×
2.3+1.3×
7.7
0.75×
0.22×
(200+3)
4.5×
86×
48×
1.3+4.8×
5.6×
1.25
1.9×
4.1-0.19
5.4×
2.4×
2.7+1.9×
7.3
0.57×
0.26×
(500+6)
5.5×
90×
4.1+9×
59
5.7×
4.1-0.57
71×
6.9×
65×
0.5×
4+0.5×
6
0.77×
0.21×
(400+8)
62×
13×
1.2+1.3×
6.4×
5.9×
7.1-0.59
95×
3.8×
0.8×
0.125×
44×
4.2×
8.9+4.2×
1.1
0.85×
(400+6)
5×
36×
58×
3+5.8×
70
9×
9.1-0.9
72×
2.6×
3.6×
18×
3.1×
4.3+3.1×
5.7
0.96×
8.9×
59×
68×
2.5+6.8×
75
7.7×
2.1-0.77
11×
0.2×
2.8×
3.3×
8.4+3.3×
1.6
0.87×
(100+8)
82×
3.6+2.5×
64
5.3×
5.1-0.53
7.4×
15×
0.3×
6.5+0.3×
3.5
0.69×
31×
61×
2.8+6.1×
72
7.1-0.7
17×
2×
4.4×
7.6+4.4×
2.4
0.66×
4.9×
92×
24×
1.5+2.4×
85
5.1-0.16
41×
7.3×
7.4+7.3×
2.6
0.49×
0.04
(500+1)
5.1×
63×
4.9+6.3×
51
7.2×
9.7×
2.1-0.97
39×
9.2×
7.8+3.7×
2.2
0.83×
(500+9)
5.5+6.1×
45
2.1-0.52
94×
9.9×
56×
8.3×
4+8.3×
0.59×
0.29×
(300+8)
8.4×
1.8+3×
82
3.1-0.73
60×
3.4×
1.9+5.4×
8.1
0.78×
(500+5)
7.5×
47×
88×
2.1+8.8×
79
3.9×
4.1-0.39
79×
85×
3.1+2.5×
6.9
0.61×
0.24×
(500+8)
97×
3.9+9.7×
61
5.1-0.45
87×
8.8+3.8×
1.2
0.27×
(100+3)
51×
5.2+6×
48
6.2×
6.1-0.62
1.5×
40×
4.2+0.5×
5.8