0.72+0.8=
4.9+3.1=
0.63-0.3=
9-5.9=
4.2×0.3=
0.13×0.2=
0.04×1.5=
0.03×2.1=
0÷0.08=
5.8÷0.1=
6.5÷0.65=
0.9÷0.001=
序号
成绩
1
19.3
6
11
19.5
2
19.1
7
12
18.9
3
8
19.2
13
18.5
4
18.7
9
18.8
14
19.9
5
20.0
10
15
19.0