题目内容

脱式计算.(怎么简便就怎么算.)
①
5
6
-(
1
3
+
1
4
)

②
3
8
-
3
10
×
5
6

③4÷
8
3
-
3
5

④
3
8
÷
1
10
×
3
5

⑤24×(
1
4
+
1
6
-
1
3
)

⑥
4
5
×
7
9
+
1
5
×
7
9
.
(1)
5
6
-
(
1
3
+
1
4
),
=
5
6
-
(
4
12
+
3
12
),
=
5
6
-
7
12
,
=
10
12
-
7
12
,
=
3
12
,
=
1
4
;

(2)
3
8
-
3
10
×
5
6
,
=
3
8
-
1
4
,
=
3
8
-
2
8
,
=
1
8
;

(3)4÷
8
3
-
3
5
,
=4×
3
8
-
3
5
,
=
3
2
-
3
5
,
=
15
10
-
6
10
,
=
9
10
;

(4)
3
8
÷
1
10
×
3
5
,
=
3
8
×
10×
3
5
,
=
9
4
,
=2
1
4
;

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

(6)
4
5
×
7
9
+
1
5
×
7
9
,
=
7
9
×
(
4
5
+
1
5
),
=
7
9
×1,
=
7
9
.
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