小数乘法简便计算强烈推荐239Word格式.docx
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4
0.28×
(100+5)
8×
8.8×
0.125
20×
62×
3.9+6.2×
61
4.8×
6×
4.1-0.6
52×
9.9
0.4×
7.9×
2.8×
81×
8
1.6×
3.5+1.6×
6.5
0.25×
0.81×
0.04
(500+5)
2.5×
63×
74×
4.4+7.4×
4×
1.25
6.1-0.28
27×
9.8×
3.6×
1.25×
87×
5.3×
2.7+5.3×
7.3
0.78×
0.22×
(400+6)
7.6×
94×
1.4+2.5×
86
7.8×
9.1-0.78
49×
8.5×
0.25
46×
6+9.8×
0.84×
0.23×
(400+7)
75×
89×
1.3+8.9×
87
2.4×
9.9×
4.1-0.99
79×
1×
2×
0.6×
7+0.6×
3
0.5×
0.4
0.24×
(500+9)
2.3×
43×
54×
3.2+5.4×
68
2.2×
2.1-0.22
68×
0.2×
3.2×
13×
9.4×
6.3+9.4×
3.7
0.56×
(100+8)
51×
2.5+5.1×
75
6.4×
5.2×
9.1-0.52
6.8×
85×
4.4×
8.1+4.4×
1.9
0.52×
0.29×
64×
24×
1.7+2.4×
83
6.3×
2.1-0.63
82×
6.2×
65×
9.7×
8+9.7×
2
0.61×
88×
4.7+9.4×
53
2.1-0.44
41×
8.9×
8.5+8.9×
1.5
(300+6)
5.9×
15×
4.9+1.5×
51
8.3×
8.1-0.83
1.3×
1.2×
12.5×
32×
2.6×
5.4+2.6×
4.6
0.83×
(300+8)
2.7×
30×
2.3+2.7×
77
1.4×
3.1-0.14
60×
3.7×
58×
7.9+2.2×
2.1
0.99×
0.27×
(500+1)
6.7×
5+2.7×
50
3.1×
7.1-0.31
0.7×
6.1×
8.2+6.1×
1.8
0.67×
(200+7)
7.2×
92×
21×
4.7+2.1×
7.1-0.89
16×
1.4+7.2×
8.6
0.53×
0.26×
(300+9)
8.1×
48×
3.1+4.8×
69
6.1-0.94
0.3×
9×
3.8×
1.5+3.8×
8.5
0.54×
(200+3)
7.5×
4.6+4.9×
54
8.1-0.32
7.5+2.7×
0.91×
(200+1)
3.9+8.9×
2.1-0.69
59×
5.3+2.2×
4.7
(300+7)
4.1×
3.8+6.2×
62
1.1-0.99
70×
5+7.2×
5