问题 解答题
直接写得数.
3
4
×16=
1.25×
1
3
×8
=
6
7
+9×
1
7
=
12÷
3
5
=
5
7
×
2
3
÷
5
7
=
1
2
×
1
3
÷
1
2
×
1
3
=
28×(
3
7
+
1
4
)=
16×(
1
4
-0.25)
=
1
5
7
×
7
12
=
答案

3
4
×16=12
1.25×
1
3
×8
=
10
3
6
7
+9×
1
7
=9
12÷
3
5
=20
5
7
×
2
3
÷
5
7
=
2
3
1
2
×
1
3
÷
1
2
×
1
3
=
1
9
28×(
3
7
+
1
4
)=19
16×(
1
4
-0.25)
=0
1
5
7
×
7
12
=1

单项选择题
单项选择题