题目内容

计算,能简算的要简算.
1
10
+
5
7
+
3
10
-
5
7

7
29
-
7
19
+
22
29
-
11
19

5
9
+(
3
4
-
1
2
)
11
12
-(
11
12
-
1
6
)
3
4
+(
11
18
-
5
12
)
2
3
+(
1
3
+
1
4
)+
3
4
.
(1)
1
10
+
5
7
+
3
10
-
5
7

=(
1
10
+
3
10
)+(
5
7
-
5
7
),
=
2
5
+0,
=
2
5
;

(2)
7
29
-
7
19
+
22
29
-
11
19

=(
7
29
+
22
29
)-(
11
19
+
7
19
),
=1-
18
19
,
=
1
19
;

(3)
5
9
+(
3
4
-
1
2
)
=
5
9
+
1
4
,
=
29
36
;

(4)
11
12
-(
11
12
-
1
6
)
=
11
12
-
11
12
+
1
6
,
=
1
6
;

(5)
3
4
+(
11
18
-
5
12
)
=
3
4
+
7
36
,
=
17
18
;

(6)
2
3
+(
1
3
+
1
4
)+
3
4

=(
2
3
+
1
3
)+(
1
4
+
3
4
),
=1+1,
=2.
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