问题 解答题
直接写得数
5
12
×4=

6-
7
10
=

2
5
÷
1
5
=

1
3
+
1
3
×
1
3
=
2
7
×
3
4
=
7
8
÷
7
8
=
1
4
×
3
8
=
10-
3
4
×
8
9
=
答案

5
12
×4=
5
3

6-

7
10
=5
3
10

2
5
÷
1
5
=2

1
3
+
1
3
×
1
3
=
4
9
2
7
×
3
4
=
3
14
7
8
÷
7
8
=1
1
4
×
3
8
=
3
32
10-
3
4
×
8
9
=9
1
3

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