题目内容

计算,能简算的要简算.
7
13
÷8+
1
8
×
6
13

11
23
×
7
9
÷
22
23

1
2
×
2
3
+
3
10

1
9
×[9÷(
1
9
×9)]
(1)
7
13
÷8+
1
8
×
6
13

=
7
13
×
1
8
+
1
8
×
6
13

=(
7
13
+
6
13
)×
1
8

=1×
1
8

=
1
8


(2)
11
23
×
7
9
÷
22
23

=
11
23
×
7
9
×
23
22

=
7
18


(3)
1
2
×
2
3
+
3
10

=
1
3
+
3
10

=
19
30


(4)
1
9
×[9÷(
1
9
×9)],
=
1
9
×[9÷1],
=
1
9
×9,
=1.
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