问题 解答题
直接写出得数.
4
5
×
1
2
=
3
4
+
1
4
=
5
6
×18=
7
12
÷
3
4
=
3
8
÷
9
4
=
1
3
×45=
3
5
-
1
4
=
10
7
÷
10
7
=
3
4
÷3=
2
5
×15=
答案

4
5
×
1
2
=
2
5
3
4
+
1
4
=1,
5
6
×18=15,
7
12
÷
3
4
=
7
9
3
8
÷
9
4
=
1
6
1
3
×45=15,
3
5
-
1
4
=
7
20
10
7
÷
10
7
=1,
3
4
÷3=
1
4
2
5
×15=6.

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