问题 解答题
5.8+3
1
5
=
5
14
×
7
15
=
4
5
=
1
5
-
1
5
÷1=
2
1
5
×10=
1÷3
1
3
=
0.66÷
2
3
=
1
2
3
÷1+
2
3
=
9
3
4
÷3=
1
1
5
÷0.8=
5.4×
4
9
=
3
7
×0.7+0.3=
答案

5.8+3
1
5
=9
5
14
×
7
15
=
1
6
4
5
=
15
2
1
5
-
1
5
÷1=4
4
5
2
1
5
×10=22
1÷3
1
3
=
3
10
0.66÷
2
3
=0.99
1
2
3
÷1+
2
3
=2
1
3
9
3
4
÷3=3
1
4
1
1
5
÷0.8=1.5
5.4×
4
9
=2.4
3
7
×0.7+0.3=0.6

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