计算.(1)16÷(23-35)(2)[12-(34-35)]÷715(3)310×23÷(45-815)-数学

题目简介

计算.(1)16÷(23-35)(2)[12-(34-35)]÷715(3)310×23÷(45-815)-数学

题目详情

计算.
(1)
1
6
÷(
2
3
-
3
5

(2)[
1
2
-(
3
4
-
3
5
)]÷
7
15

(3)
3
10
×
2
3
÷(
4
5
-
8
15
题型:解答题难度:中档来源:不详

答案

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

=class="stub"5
2


(2)[class="stub"1
2
-(class="stub"3
4
-class="stub"3
5
)]÷class="stub"7
15

=[class="stub"1
2
-class="stub"3
20
class="stub"7
15

=class="stub"7
20
×class="stub"15
7

=class="stub"3
4


(3)class="stub"3
10
×class="stub"2
3
÷(class="stub"4
5
-class="stub"8
15
),
=class="stub"3
10
×class="stub"2
3
÷class="stub"4
15

=class="stub"1
5
×class="stub"15
4

=class="stub"3
4

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