题目内容

计算下列各题,能简算的要简算.
2
3
+
4
5
-
3
10

11
8
-(
5
6
+
3
8

6
7
-(
11
14
-
1
2

5
9
+
4
11
+
6
11
+
4
9
(1)
2
3
+
4
5
-
3
10

=
22
15
-
3
10

=1
1
6


(2)
11
8
-(
5
6
+
3
8

=
11
8
-(
3
8
+
5
6
),
=
11
8
-
3
8
-
5
6

=1-
5
6

=
1
6


(3)
6
7
-(
11
14
-
1
2

=
6
7
-
2
7

=
4
7


(4)
5
9
+
4
11
+
6
11
+
4
9

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

=1
10
11
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