题目内容

合理、灵活地计算.
85×
3
86

5
6
×
5
9
+
5
9
÷6
(2-0.6)÷
7
15
2-
6
13
÷
9
26
-
2
3
7
8
+
5
12
)÷
1
24
(1)85×
3
86

=(86-1)×
3
86

=86×
3
86
-1×
3
86

=3-
3
86

=2
83
86


(2)
5
6
×
5
9
+
5
9
÷6,
=
5
6
×
5
9
+
5
9
×
1
6

=
5
9
×(
5
6
+
1
6
),
=
5
9
×1,
=
5
9


(3)(2-0.6)÷
7
15

=1.4×
15
7

=3;

(4)2-
6
13
÷
9
26
-
2
3

=2-
6
13
×
26
9
-
2
3

=2-
4
3
-
2
3

=2-(
4
3
+
2
3
),
=2-2,
=0;

(5)(
7
8
+
5
12
)÷
1
24

=
31
24
×24,
=31.
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