题目内容

计算.
(1)3-0.5×2
(2)
4
5
+
1
3
-
1
15

(3)
3
4
÷(
1
2
-
3
8

(4)26.4÷(2.5×3-1.5)
(5)(4.4-1.8)×(0.4+2)
(6)2-
5
4
×
8
15
-
1
3

(7)[1-(
1
6
+
1
4
)]÷
7
10
(1)3-0.5×2,
=3-1,
=2;

(2)
4
5
+
1
3
-
1
15

=
17
15
-
1
15

=
16
15


(3)
3
4
÷(
1
2
-
3
8
),
=
3
4
÷
1
8

=6;

(4)26.4÷(2.5×3-1.5),
=26.4÷(7.5-1.5),
=26.4÷6,
=4.4;

(5)(4.4-1.8)×(0.4+2),
=2.6×2.4,
=6.24;

(6)2-
5
4
×
8
15
-
1
3

=2-
2
3
-
1
3

=2-(
2
3
+
1
3
),
=2-1,
=1;

(7)[1-(
1
6
+
1
4
)]÷
7
10

=[1-
5
12
7
10

=
7
12
×
10
7

=
5
6
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