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计算下面各题.(能简算的要简算)(1)(251+518)×9×17(2)(2+75)×514(3)32×1333(4)(3+34÷34+3)一(7×16÷7×16)(5)(56−14×23)÷16(6)49÷[(23−29)×12].

题目详情
计算下面各题.(能简算的要简算)
(1)(
2
51
+
5
18
)×9×17   
(2)(2+
7
5
)×
5
14
(3)32×
13
33
(4)(3+
3
4
÷
3
4
+3)一(7×
1
6
÷7×
1
6
(5)(
5
6
1
4
×
2
3
1
6
(6)
4
9
÷[(
2
3
2
9
1
2
].
▼优质解答
答案和解析
(1)(
2
51
+
5
18
)×9×17,
=
2
51
×9×17+
5
18
×9×17,
=6+42
1
2

=48
1
2


(2)(2+
7
5
)×
5
14

=
17
5
×
5
14

=
17
14


(3)32×
13
33

=(33-1)×
13
33

=33×
13
33
-1×
13
33

=13-
13
33

=12
20
33


(4)(3+
3
4
÷
3
4
+3)-(7×
1
6
÷7×
1
6
),
=(3+1+3)-(7÷7×
1
6
×
1
6
),
=7-
1
36

=6
35
36


(5)(
5
6
-
1
4
×
2
3
)÷
1
6

=(
5
6
-
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