511-(17-611)(74-56)÷112310+(47+12)×725〔12-(34-35)〕÷710.-数学

题目简介

511-(17-611)(74-56)÷112310+(47+12)×725〔12-(34-35)〕÷710.-数学

题目详情

5
11
-(
1
7
-
6
11
7
4
-
5
6
)÷
1
12
3
10
+(
4
7
+
1
2
)×
7
25
1
2
-(
3
4
-
3
5
)〕÷
7
10
题型:解答题难度:中档来源:不详

答案

(1)class="stub"5
11
-(class="stub"1
7
-class="stub"6
11
),
=class="stub"5
11
-class="stub"1
7
+class="stub"6
11

=class="stub"5
11
+class="stub"6
11
-class="stub"1
7

=1-class="stub"1
7

=class="stub"6
7


(2)(class="stub"7
4
-class="stub"5
6
)÷class="stub"1
12

=(class="stub"7
4
-class="stub"5
6
)×12,
=class="stub"7
4
×12-class="stub"5
6
×12,
=21-10,
=11;

(3)class="stub"3
10
+(class="stub"4
7
+class="stub"1
2
)×class="stub"7
25

=class="stub"3
10
+class="stub"4
7
×class="stub"7
25
+class="stub"1
2
×class="stub"7
25

=class="stub"3
10
+class="stub"4
25
+class="stub"7
50

=class="stub"15
50
+class="stub"8
50
+class="stub"7
50

=class="stub"3
5


(4)[class="stub"1
2
-(class="stub"3
4
-class="stub"3
5
)]÷class="stub"7
10

=[class="stub"1
2
-class="stub"3
20
class="stub"7
10

=class="stub"7
20
÷class="stub"7
10

=class="stub"1
2

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