813÷7+17×61316×23÷(45-815)[12-(34-35)]÷7103-314×2-47.-数学

题目简介

813÷7+17×61316×23÷(45-815)[12-(34-35)]÷7103-314×2-47.-数学

题目详情

8
13
÷7+
1
7
×
6
13
1
6
×
2
3
÷(
4
5
-
8
15
[
1
2
-(
3
4
-
3
5
)]÷
7
10
3-
3
14
×2-
4
7
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"6
13

=class="stub"8
13
×class="stub"1
7
+class="stub"1
7
×class="stub"6
13

=(class="stub"8
13
+class="stub"6
13
)×class="stub"1
7

=class="stub"14
13
×class="stub"1
7

=class="stub"2
13


(2)class="stub"1
6
×class="stub"2
3
÷(class="stub"4
5
-class="stub"8
15
),
=class="stub"1
6
×class="stub"2
3
÷class="stub"4
15

=class="stub"1
9
×class="stub"15
4

=class="stub"5
12


(3)[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


(4)3-class="stub"3
14
×2-class="stub"4
7

=3-class="stub"3
7
-class="stub"4
7

=3-(class="stub"3
7
+class="stub"4
7
),
=3-1,
=2.

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