问题 解答题
直接写得数.
3
8
×8
=
6
7
=
5
7
÷
10
21
=
3
4
+25%
=
12×
3
4
×
2
9
=
4
7
÷2÷
1
7
=
答案

3
8
×8
=3,
6
7
=0,
5
7
÷
10
21
=
3
2
3
4
+25%
=1,
12×
3
4
×
2
9
=2,
4
7
÷2÷
1
7
=2.

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