题目内容

计算,能简算的要简算.
5
6
-
3
10
+
5
6
-
7
10
=

11
8
-(
5
6
+
3
8
)=

5
9
-(
2
9
-
1
5
)=
6
7
-(
11
14
-
1
2
)=
5
9
+
4
11
+
6
11
+
4
9
=
5
7
+
1
4
-
5
7
=
(1)
5
6
-
3
10
+
5
6
-
7
10
,
=(
5
6
+
5
6
)-(
3
10
+
7
10
),
=
5
3
-1,
=
2
3
;

(2)
11
8
-(
5
6
+
3
8
),
=
11
8
-
5
6
-
3
8
,
=(
11
8
-
3
8
)-
5
6
,
=1-
5
6
,
=
1
6
;

(3)
5
9
-(
2
9
-
1
5
),
=
5
9
-
2
9
+
1
5
,
=
1
3
+
1
5
,
=
8
15
;

(4)
6
7
-(
11
14
-
1
2
),
=
6
7
-
2
7
,
=
4
7
;

(5)
5
9
+
4
11
+
6
11
+
4
9
,
=(
5
9
+
4
9
)+(
4
11
+
6
11
),
=1+
10
11
,
=1
10
11
;

(6)
5
7
+
1
4
-
5
7
,
=(
5
7
-
5
7
)+
1
4
,
=
1
4
.
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