题目内容

计算下面各题.
720+280÷5
36.5×1.4-8.51÷3.7
1
2
÷
2
3
-
2
5
(156×
4
13
-26)×
8
11
4
3
+
5
2
)÷(2-
3
2
[4-(
3
4
-
3
8
)]×
4
29
(1)720+280÷5,
=720+56,
=776;

(2)36.5×1.4-8.51÷3.7,
=51.1-2.3,
=48.4;

(3)
1
2
÷
2
3
-
2
5

=
1
2
×
3
2
-
2
5

=
3
4
-
2
5

=
7
20


(4)(156×
4
13
-26)×
8
11

=(48-26)×
8
11

=22×
8
11

=16;

(5)(
4
3
+
5
2
)÷(2-
3
2
),
=
23
6
÷
1
2

=
23
6
×2,
=
23
3


(6)[4-(
3
4
-
3
8
)]×
4
29

=[4-
3
8
4
29

=
29
8
×
4
29

=
1
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