计算下面各题:(45-13)÷21525×(56+34)-1513÷127+23×712[16+(12-13)]÷2.-数学

题目简介

计算下面各题:(45-13)÷21525×(56+34)-1513÷127+23×712[16+(12-13)]÷2.-数学

题目详情

计算下面各题:
4
5
-
1
3
)÷
2
15
2
5
×(
5
6
+
3
4
)-
1
5
1
3
÷
12
7
+
2
3
×
7
12
[
1
6
+(
1
2
-
1
3
)]÷2.
题型:解答题难度:中档来源:不详

答案

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

=class="stub"7
15
×class="stub"15
2

=class="stub"7
2


(2)class="stub"2
5
×(class="stub"5
6
+class="stub"3
4
)-class="stub"1
5

=class="stub"2
5
×class="stub"19
12
-class="stub"1
5

=class="stub"19
30
-class="stub"1
5

=class="stub"13
30


(3)class="stub"1
3
÷class="stub"12
7
+class="stub"2
3
×class="stub"7
12

=class="stub"1
3
×class="stub"7
12
+class="stub"2
3
×class="stub"7
12

=(class="stub"1
3
+class="stub"2
3
)×class="stub"7
12

=1×class="stub"7
12

=class="stub"7
12


(4)[class="stub"1
6
+(class="stub"1
2
-class="stub"1
3
)]÷2
=[class="stub"1
6
+class="stub"1
6
]÷2
=class="stub"1
3
×class="stub"1
2

=class="stub"1
6

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