问题 解答题
直接写得数.
3
7
×
7
9
=
1-
4
7
=
(7+
7
8
)×8
=
12×(
1
3
-
1
4
+
5
6
)
=
4
5
÷
5
8
=
3
4
×6
=
0.1÷10%=a-
2
5
a=
答案

3
7
×
7
9
=
1
3
1-
4
7
=
3
7
(7+
7
8
)×8
=63,
12×(
1
3
-
1
4
+
5
6
)
=11,
4
5
÷
5
8
=
32
25
3
4
×6
=
9
2
0.1÷10%=1,a-
2
5
a=
3
5
a.

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