用合适的方法计算下面各题.(34-325)×10027×1711+511×2738×1011+58÷1110(12×56-7.3)÷9489÷〔(25+110)×43〕(913×27-913)×718

题目简介

用合适的方法计算下面各题.(34-325)×10027×1711+511×2738×1011+58÷1110(12×56-7.3)÷9489÷〔(25+110)×43〕(913×27-913)×718

题目详情

用合适的方法计算下面各题.
3
4
-
3
25
)×100
2
7
×
17
11
+
5
11
×
2
7
3
8
×
10
11
+
5
8
÷
11
10
(12×
5
6
-7.3)÷
9
4
8
9
÷〔(
2
5
+
1
10
)×
4
3
9
13
×27-
9
13
)×
7
18
题型:解答题难度:中档来源:不详

答案

(1)(class="stub"3
4
-class="stub"3
25
)×100,
=class="stub"3
4
×100-class="stub"3
25
×100,
=75-12,
=63;

(2)class="stub"2
7
×class="stub"17
11
+class="stub"5
11
×class="stub"2
7

=class="stub"2
7
×(class="stub"17
11
+class="stub"5
11
),
=class="stub"2
7
×2,
=class="stub"4
7


(3)class="stub"3
8
×class="stub"10
11
+class="stub"5
8
÷class="stub"11
10

=class="stub"3
8
×class="stub"10
11
+class="stub"5
8
×class="stub"10
11

=(class="stub"3
8
+class="stub"5
8
)×class="stub"10
11

=1×class="stub"10
11

=class="stub"10
11


(4)(12×class="stub"5
6
-7.3)÷class="stub"9
4

=(10-7.3)÷class="stub"9
4

=2.7×class="stub"4
9

=1.2;

(5)class="stub"8
9
÷〔(class="stub"2
5
+class="stub"1
10
)×class="stub"4
3
],
=class="stub"8
9
÷〔class="stub"1
2
×class="stub"4
3
〕,
=class="stub"8
9
×class="stub"3
2

=class="stub"4
3


(6)(class="stub"9
13
×27-class="stub"9
13
)×class="stub"7
18

=[(class="stub"9
13
×(27-1)]×class="stub"7
18

=[class="stub"9
13
×
26]×class="stub"7
18

=18×class="stub"7
18

=7.

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