题目内容

2
3
+
1
3
×
3
4
3
5
×(
1
7
+
8
21
÷
2
3
)
2005
2006
×2007
(
5
8
+
1
27
)×8+
19
27
1
6
÷[1÷(
3
5
-
3
10
)].
(1)
2
3
+
1
3
×
3
4
,
=
2
3
+
1
4
,
=
11
12
;

(2)
3
5
×(
1
7
+
8
21
÷
2
3
),
=
3
5
×(
1
7
+
4
7
),
=
3
5
×
5
7
,
=
3
7
;

(3)
2005
2006
×2007,
=
2005
2006
×(2006+1),
=
2005
2006
×2006+
2005
2006
×1,
=2005+
2005
2006
,
=2005
2005
2006
;

(4)(
5
8
+
1
27
)×8+
19
27
,
=
5
8
×8+
1
27
×8+
19
27
,
=5+
8
27
+
19
27
,
=5+(
8
27
+
19
27
),
=5+1,
=6;

(5)
1
6
÷[1÷(
3
5
-
3
10
)],
=
1
6
÷[1÷
3
10
],
=
1
6
×
3
10
,
=
1
20
.
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