题目内容

2
3
÷1
1
2
×
7
18
14
1
7
×2
1
2
×4
1÷
9
11
-
9
11
÷1
1÷0.45×
13
20
(
1
2
-
1
6
+
5
12
)×36
2
1
2
×0.45×3.5
.
(1)
2
3
÷1
1
2
×
7
18
,
=
4
9
×
7
18
,
=
14
81
;

(2)14
1
7
×2
1
2
×4
,
=
99
7
×(
5
2
×4),
=
99
7
×10,
=
990
7
;

(3)1÷
9
11
-
9
11
÷1
,
=
11
9
-
9
11
,
=
40
99
;

(4)1÷0.45×
13
20
,
=
20
9
×
13
20
,
=
13
9
;

(5)(
1
2
-
1
6
+
5
12
)×36,
=
1
2
×36-
1
6
×36+
5
12
×36,
=18-6+15,
=12+15
=27;

(6)2
1
2
×0.45×3.5
,
=1.125×3.5,
=3.9375.
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