内容正文:
练习(一)
1.02
×
2.47
=
5.55
×
6.6
=
1.45
×
6.26
=
5.28
×
6.64
=
3.58
×
2.29
=
3.87
×
7.71
=
4.98
×
9.27
=
8.65
×
9.43
=
2.02
×
5.54
=
8.13
×
3.26
=
9.16
×
3.6
=
0.68
×
4.21
=
练习(二)
6.9
×
3.46
=
9.9
×
6.42
=
7.49
×
7.56
=
9
×
8.48
=
8.47
×
8.22
=
7.83
×
6.45
=
0.87
×
3.84
=
2.82
×
3.19
=
8.8
×
6.97
=
2.86
×
0.47
=
2.56
×
3.07
=
8.7
×
6.87
=
练习(三)
7.53
×
3.04
=
1.58
×
4.48
=
9.23
×
8.95
=
5.59
×
6.92
=
3.01
×
2.03
=
1.71
×
4.28
=
3.98
×
9.35
=
8.04
×
3.8
=
6.44
×
8.96
=
1.31
×
8.44
=
1.42
×
9.36
=
9.56
×
7.91
=
练习(四)
3.27
×
0.9
=
4.61
×
3.51
=
7.61
×
9.71
=
7.75
×
7.59
=
0.66
×
6.72
=
7.73
×
0.95
=
3.97
×
3.8
=
4.05
×
7.08
=
8.72
×
5.92
=
1.29
×
2.02
=
2.42
×
5.9
=
0.25
×
3.61
=
练习(五)
9.08
×
3.58
=
9.84
×
0.33
=
2.59
×
8.55
=
4.94
×
8.6
=
9.81
×
5.59
=
2.06
×
0.45
=
8.16
×
2.9
=
5.82
×
9.33
=
9.59
×
5.66
=
1.85
×
4.7
=
8.36
×
6.3
=
0.4
×
0.35
=
练习(六)
5.75
×
5.71
=
3.76
×
7.15
=
1.37
×
9.97
=
0.35
×
9.59
=
9.55
×
5.5
=
1.98
×
6.81
=
7.99
×
4.47
=
9.33
×
1.27
=
0.21
×
9.11
=
6.68
×
7.27
=
9.1
×
9.54
=
2.27
×
0.03
=
练习(七)
6.08
×
1.49
=
9.16
×
6.35
=
4.86
×
1.55
=
4.78
×
7.62
=
2.26
×
9.93
=
5.84
×
1.08
=
7.97
×
7.28
=
8.58
×
8.93
=