题目内容

脱式计算
4
5
+
1
4
)÷
7
3
+
7
10
9÷[1-(
1
2
+
1
6
)]
1.02÷(5+0.4×0.25)
(1)(
4
5
+
1
4
)÷
7
3
+
7
10

=
21
20
×
3
7
+
7
10

=
9
20
+
7
10

=
23
20


(2)9÷[1-(
1
2
+
1
6
)],
=9÷[1-
2
3
],
=9÷
1
3

=27;

(3)1.02÷(5+0.4×0.25),
=1.02÷(5+0.1),
=1.02÷5.1,
=0.2.
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