题目内容

下列各题能简算的要简算
8
9
-
5
16
÷
5
8

9
13
+
4
13
×
1
4

(29-30.6÷6.8)×1.2
(
5
6
-
1
8
+
1
12
)×24
1
9
×
3
5
+
2
5
÷9
1
5
+[(
2
5
+
1
3
)÷
5
6
].
(1)
8
9
-
5
16
÷
5
8
,
=
8
9
-
5
16
×
8
5
,
=
8
9
-
1
2
,
=
7
18
;

(2)
9
13
+
4
13
×
1
4
,
=
9
13
+
1
13
,
=
10
13
;

(3)(29-30.6÷6.8)×1.2,
=(29-4.5)×1.2,
=24.5×1.2,
=29.4;

(4)(
5
6
-
1
8
+
1
12
)×24,
=
5
6
×24-
1
8
×24+
1
12
×24,
=20-3+2,
=19;

(5)
1
9
×
3
5
+
2
5
÷9,
=
1
9
×
3
5
+
2
5
×
1
9
,
=
1
9
×(
3
5
+
2
5
),
=
1
9
;

(6)
1
5
+[(
2
5
+
1
3
)÷
5
6
],
=
1
5
+[
11
15
÷
5
6
],
=
1
5
+[
11
15
×
6
5
],
=
1
5
+
22
25
,
=
27
25
.
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