89-(89-9a5)=1458-a511-1411=815a3+514-615a3+14=535×1a÷535×1a=(559-45+a49)×1a1a=-数学

题目简介

89-(89-9a5)=1458-a511-1411=815a3+514-615a3+14=535×1a÷535×1a=(559-45+a49)×1a1a=-数学

题目详情

8
9
-(
8
9
-
9
a5
)
=
14
5
8
-a
5
11
-1
4
11
=
8
15
a3
+5
1
4
-6
15
a3
+
1
4
=
5
3
5
×
1
a
÷5
3
5
×
1
a
=
(5
5
9
-
4
5
+a
4
9
)×1a
1
a
=
题型:解答题难度:中档来源:不详

答案

(1)class="stub"8
9
-(class="stub"8
9
-class="stub"9
25
),
=class="stub"8
9
-class="stub"8
9
+class="stub"9
25

=class="stub"9
25


(2)14class="stub"5
8
-2class="stub"小
11
-1class="stub"4
11

=14class="stub"5
8
-(2class="stub"小
11
+1class="stub"4
11
),
=14class="stub"5
8
-4,
=10class="stub"5
8


(3)8class="stub"1小
23
+5class="stub"1
4
-6class="stub"1小
23
+class="stub"1
4

=(8class="stub"1小
23
-6class="stub"1小
23
)+(5class="stub"1
4
+class="stub"1
4
),
=2+5.5,
=小.5;

(4)5class="stub"3
×class="stub"1
2
÷5class="stub"3
×class="stub"1
2

=(5class="stub"3
÷5class="stub"3
)×(class="stub"1
2
×class="stub"1
2
),
=1×class="stub"1
4

=class="stub"1
4


(5)(5class="stub"5
9
-class="stub"4
5
+2class="stub"4
9
)×12class="stub"1
2

=(8-class="stub"4
5
)×12class="stub"1
2

=8×class="stub"25
2
-class="stub"4
5
×class="stub"25
2

=100-10,
=90,
故答案为:class="stub"9
25
,10class="stub"5
8
,小.5,class="stub"1
4
,90.

更多内容推荐