小数乘法简便计算强烈推荐199Word格式文档下载.docx
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4.5+6.6×
55
8×
12.5
8.7×
4.1-0.87
90×
2.5
2.4×
12.5×
18×
8
0.4×
6.1+0.4×
3.9
2.5×
0.57×
4
0.22×
(400+1)
9×
67×
84×
4.5+8.4×
8.6×
4.1-0.86
80×
0.04×
1.2×
1.25×
13×
5.9+9×
4.1
0.91×
0.04
(100+4)
24×
9.9
58×
2.3+5.8×
77
6.4×
1.3×
9.1-0.13
97×
2.7×
2.8×
53×
6.8×
2.1+6.8×
7.9
0.98×
0.27×
(500+8)
3.7×
45×
1.9+4.5×
81
60×
1.4×
6.9+6.4×
3.1
25×
0.85×
(500+2)
8.3×
0.125
68×
47×
3.7+4.7×
63
7.2×
7.1×
4.1-0.71
21×
31×
7.8×
7.1+7.8×
2.9
0.96×
0.23×
(300+4)
3.4×
79×
4.8+2.1×
52
3.5×
4.1-0.35
34×
6×
91×
3×
8.6+3×
1.4
0.86×
9.7×
77×
4.3+7.7×
57
4.8×
6.5×
4.1-0.65
26×
6.2×
7×
0.9×
6.3+0.9×
3.7
0.87×
(100+8)
9.2×
35×
83×
4.2+8.3×
58
8.2×
9.1-0.82
2.9×
3.2×
86×
7.5×
6.7+7.5×
3.3
0.94×
(300+6)
2.9+4.5×
71
5.7×
6.1-0.57
7.7×
4.7×
4.5+4.7×
5.5
0.65×
(400+4)
5.2×
96×
3.8+9.6×
62
5.8×
1.1-0.58
4.5×
64×
6.4+6.8×
3.6
0.54×
(400+9)
59×
33×
1.9+3.3×
6.6×
5.1-0.66
1.7×
89×
5×
5.6+5×
4.4
0.59×
0.24×
(100+1)
69×
4.7+6.8×
53
5.6×
1.1-0.3
8.9×
72×
4+1.6×
6
0.47×
52×
2.2+5.2×
78
8.1-0.65
3.8×
30×
9.8×
2.4+9.8×
7.6
0.26×
78×
95×
2.7+9.5×
73
6.7×
6.1-0.67
6.3×
2.9+4.8×
7.1
0.72×
(200+7)
6.1×
75×
2.7+3.1×
3.1-0.63
61×
81×
2.6+8.6×
7.4
0.78×
(200+3)
5.4×
43×
1.4+4.3×
86
4.1-0.9
4.3×
9.2+4.3×
(500+4)
49×