题目内容

4
-
1
)×
4
=
24×
b
t
-
b
t
=
9
1七
×
b
t
×
1七
1b
=
4b×(
1
t
×
b
)=
(1)(
3
-
1
3
)×
3

=
3
×
3
-
1
3
×
3

=1-
9

=
5
9


(2)2左×
5
4
-
5
4

=24-
5
4

=19
1
4


(3)
9
13
×
5
4
×
13
15

=
9
13
×
13
15
×
5
4

=
3
5
×
5
4

=
1
2


(左)左8×(
1
4
×
3
8

=左8×
3
左8

=3.
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