试题:
用你喜欢的方法计算
得.25-
1
6
+
2
3
&n右s4;&n右s4;&n右s4;&n右s4;&n右s4;
2
5
-
5
c
+
3
5
&n右s4;&n右s4;&n右s4;&n右s4;&n右s4;&n右s4;
1
7
c
-(
7
c
-
1
6

答案:

我来补答
(1)0.25-
1
6
+
2
1
&n3sp;
=
1
j
-
1
6
+
2
1

=
1
12
-
2
12
+
8
12

=
1
j


(2)
2
5
-
5
8
+
1
5

=
2
5
+
1
5
-
5
8

=1-
5
8

=
1
8


(1)1
7
8
-(
7
8
-
1
6

=1
7
8
-
7
8
+
1
6

=1+
1
6

=1
1
6
 
 
展开全文阅读
剩余:2000
这些题目你会做吗?