题目内容

下面各题,怎样算简便就怎样算
1
3
÷(
2
3
-
2
5
)×
3
5
3-
10
21
×
3
2
-
2
7

7
9
÷
11
5
+
2
9
×
5
11
1
6
+
3
4
×
2
3
÷2.
1
3
÷(
2
3
-
2
5
)×
3
5

=
1
3
÷
4
15
×
3
5

=
1
3
×
15
4
×
3
5

=
3
4

②3-
10
21
×
3
2
-
2
7

=3-
5
7
-
2
7

=3-(
5
7
+
2
7
),
=3-1,
=2;
7
9
÷
11
5
+
2
9
×
5
11

=
7
9
×
5
11
+
2
9
×
5
11

=(
7
9
+
2
9
)×
5
11

=1×
5
11

=
5
11

1
6
+
3
4
×
2
3
÷2,
=
1
6
+
1
2
÷2,
=
1
6
+
1
4

=
5
12
练习册系列答案
相关题目

违法和不良信息举报电话:027-86699610 举报邮箱:58377363@163.com

精英家教网