问题 解答题
直接写出得数.
4×0.2=______
9-0.9=______7.2÷0.4=______3÷7=______
2
5
-
1
3
=______
6÷(
1
2
-
1
3
)=______
24÷
3
5
=______
1-
2
5
+
3
5
=______
5-(0.5+3.4)=______
1
3
×(1-
6
7
)=______
3
4
×
4
3
=______
1
4
+
3
4
÷
3
4
=______.
答案

4×0.2=0.8,9-0.9=8.1,7.2÷0.4=18,3÷7=
3
7
2
5
-
1
3
=
1
15
6÷(
1
2
-
1
3
)=36,
24÷
3
5
=40,
1-
2
5
+
3
5
=
6
5
5-(0.5+3.4)=1.1,
1
3
×(1-
6
7
)=
1
21
3
4
×
4
3
=
16
9
1
4
+
3
4
÷
3
4
=1
1
4
故答案为:0.8,8.1,18,
3
7
1
15
,36,40,
6
5
,1.1,
1
21
16
9
,1
1
4

单项选择题
单项选择题