题目内容

脱式计算,能简算的要简算:
3-
5
18
×
27
40
-
13
16
=
7
9
÷
11
5
+
2
9
×
5
11
=
65×101-65=
70.2÷[(5.3-1.4)×0.2]=45×
5
44
=
1
4
×4÷
1
4
×4=
(1)3-
5
18
×
27
40
-
13
16

=3-
3
16
-
13
16

=3-(
3
16
+
13
16
),
=3-1,
=2;
(2)
7
9
÷
11
5
+
2
9
×
5
11

=
7
9
×
5
11
+
2
9
×
5
11

=
5
11
×(
7
9
+
2
9
),
=
5
11

(3)65×101-65,
=65×(101-1),
=65×100,
=6500;
(4)70.2÷[(5.3-1.4)×0.2],
=70.2÷(3.9×0.2),
=70.2÷0.78,
=90;
(5)45×
5
44

=44×
5
44
+
5
44

=5
5
44

(6)
1
4
×4÷
1
4
×4,
=1×4×4,
=16.
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