题目内容

计算下列各题.
(1)
3
7
×
1
4
÷
3
4

(2)(25+
2
3
)×4
(3)(15-14×
4
7
)÷
8
21

(4)(
3
8
-25%)
×8÷
5
6
×
5
2
.
(1)
3
7
×
1
4
÷
3
4
,
=
3
7
×
1
4
×
4
3
,
=
1
7
;
(2)(25+
2
3
)×4,
=25×4+
2
3
×4,
=100+2
2
3
,
=102
2
3
;
(3)(15-14×
4
7
)÷
8
21
,
=(15-8)÷
8
21
,
=7÷
8
21
,
=7×
21
8
,
=18
3
8
;
(4)(
3
8
-25%
)×8÷
5
6
×
5
2
,
=(
3
8
×8-25%×8)÷
5
6
×
5
2
,
=(3-2)÷
5
6
×
5
2
,
=1×
6
5
×
5
2
,
=3.
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