813÷7+17×51312-4×14÷445+(15+34×47)514÷[67×(23+16)].-数学

题目简介

813÷7+17×51312-4×14÷445+(15+34×47)514÷[67×(23+16)].-数学

题目详情

8
13
÷7+
1
7
×
5
13
1
2
-4×
1
4
÷4
4
5
+(
1
5
+
3
4
×
4
7
)
5
14
÷[
6
7
×(
2
3
+
1
6
)]
题型:解答题难度:中档来源:不详

答案

(1)class="stub"8
13
÷
7+class="stub"1
7
×class="stub"5
13

=class="stub"1
7
×
class="stub"8
13
+class="stub"5
13
),
=class="stub"1
7
×
1,
=class="stub"1
7


(2)class="stub"1
2
-4×class="stub"1
4
÷4class="stub"4
5
+(class="stub"1
5
+class="stub"3
4
×class="stub"4
7
),
=class="stub"1
2
-4×class="stub"1
4
÷4class="stub"4
5
+(class="stub"1
5
+class="stub"3
7
),
=class="stub"1
2
-4×class="stub"1
4
÷4class="stub"4
5
+class="stub"22
35

=class="stub"1
2
-1÷4class="stub"4
5
+class="stub"22
35

=class="stub"1
2
-class="stub"4
24
+class="stub"22
35

=class="stub"1
3
+class="stub"22
35

=class="stub"101
105


(3)class="stub"5
14
÷[class="stub"6
7
×(class="stub"2
3
+class="stub"1
6
)]

=class="stub"5
14
÷
[class="stub"6
7
×class="stub"5
6
],
=class="stub"5
14
÷class="stub"5
7

=class="stub"1
2

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