题目内容

(1)1025-4050÷54
(2)(100-19)÷(1.63+1.07)
(3)5-
1
3
÷
3
4
×
2
3

(4)4.3÷(3.4-1.25)×0.4]
(5)
1
4
÷[(
3
5
-
1
4
)×
2
5
].
(1)1025-4050÷54
=1025-75
=950;
(2)(100-19)÷(1.63+1.07)
=81÷2.7
=30;
(3)5-
1
3
÷
3
4
×
2
3

=5-
1
3
×
4
3
×
2
3

=5-
4
9
×
2
3

=5-
8
27

=4
19
27

(4)4.3÷[(3.4-1.25)×0.4]
=4.3÷[2.15×0.4]
=4.3÷0.86
=5;
(5)
1
4
÷[(
3
5
-
1
4
)×
2
5
].
=
1
4
÷[
7
20
×
2
5
].
=
1
4
÷
7
50

=1
11
14
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