题目内容

用合适的方法计算下列各题.
6
17
×
1
2
×51
1÷(
1
4
÷
1
5
)
5
8
×17+
3
8
×17
4
7
×
7
12
÷
4
9
36×(3-
2
9
)
(1)
6
17
×
1
2
×51,
=
6
17
×51×
1
2
,
=18×
1
2
,
=9;

(2)1÷(
1
4
÷
1
5
),
=1÷
5
4
,
=
4
5
;

(3)
5
8
×17+
3
8
×17,
=(
5
8
+
3
8
)×17,
=1×17,
=17;

(4)
4
7
×
7
12
÷
4
9
,
=
1
3
×
9
4
,
=
3
4
;

(5)36×(3-
2
9
),
=36×3-36×
2
9
,
=108-8,
=100.
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