题目内容

直接写出得数.
1
9
×3=
1-
2
3
=
1
2
÷3=
1
2
-
1
3
)×12=
3
4
×
2
3
=
1
5
=
5
21
×7=
1÷(
1
4
×
1
5
)=
4
5
÷
2
5
=
1
2
×6=
5
8
+
1
2
=
1
7
×
1
3
×21=
100×
8
25
=
6
7
÷
2
7
=
1
2
-
1
3
=
1
4
÷4×
1
4
=
1
9
×3=
1
3
1-
2
3
=
1
3
1
2
÷3=
1
6
1
2
-
1
3
)×12=2
3
4
×
2
3
=
1
2
1
5
=25
5
21
×7=
5
3
1÷(
1
4
×
1
5
)=20
4
5
÷
2
5
=2
1
2
×6=3
5
8
+
1
2
=
9
8
1
7
×
1
3
×21=1
100×
8
25
=32
6
7
÷
2
7
=3
1
2
-
1
3
=
1
6
1
4
÷4×
1
4
=
1
16
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