710+(47+12)×725[1-(14+38)]÷14125×(56+34)+4517÷223+67×38.-数学

题目简介

710+(47+12)×725[1-(14+38)]÷14125×(56+34)+4517÷223+67×38.-数学

题目详情

7
10
+(
4
7
+
1
2
)×
7
25
[1-(
1
4
+
3
8
)]÷
1
4
12
5
×(
5
6
+
3
4
)+
4
5
1
7
÷2
2
3
+
6
7
×
3
8
题型:解答题难度:中档来源:不详

答案

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

=class="stub"7
10
+class="stub"15
14
×class="stub"7
25

=class="stub"7
10
+class="stub"3
10

=1;
(2)[1-(class="stub"1
4
+class="stub"3
8
)]÷class="stub"1
4

=[1-class="stub"7
8
class="stub"1
4

=class="stub"1
8
×4,
=class="stub"1
2


(3)class="stub"12
5
×(class="stub"5
6
+class="stub"3
4
)+class="stub"4
5

=class="stub"12
5
×class="stub"19
12
+class="stub"4
5

=class="stub"19
5
+class="stub"4
5

=class="stub"23
5


(4)class="stub"1
7
÷2class="stub"2
3
+class="stub"6
7
×class="stub"3
8

=class="stub"1
7
×class="stub"3
8
+class="stub"6
7
×class="stub"3
8

=(class="stub"1
7
+class="stub"6
7
)×class="stub"3
8

=1×class="stub"3
8

=class="stub"3
8

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