下面各题怎样简便就怎样算1516×(56+12)+3412-(34-35)÷71023×27+23÷7524×(34+56)-数学

题目简介

下面各题怎样简便就怎样算1516×(56+12)+3412-(34-35)÷71023×27+23÷7524×(34+56)-数学

题目详情

下面各题怎样简便就怎样算
15
16
×(
5
6
+
1
2
)+
3
4
1
2
-(
3
4
-
3
5
)÷
7
10
2
3
×
2
7
+
2
3
÷
7
5
24×(
3
4
+
5
6
题型:解答题难度:中档来源:不详

答案

(1)class="stub"15
16
×
class="stub"5
6
+class="stub"1
2
)+class="stub"3
4

=class="stub"15
16
×(class="stub"5
6
+class="stub"3
6
)+class="stub"3
4

=class="stub"15
16
×class="stub"8
6
+class="stub"3
4

=class="stub"5
4
+class="stub"3
4

=class="stub"8
4

=2;

(2)class="stub"1
2
-(class="stub"3
4
-class="stub"3
5
)÷class="stub"7
10

=class="stub"1
2
-(class="stub"15
20
-class="stub"12
20
)÷class="stub"7
10

=class="stub"1
2
-class="stub"3
20
×class="stub"10
7

=class="stub"1
2
-class="stub"3
14

=class="stub"7
14
-class="stub"3
14

=class="stub"2
7


(3)class="stub"2
3
×class="stub"2
7
+class="stub"2
3
÷class="stub"7
5

=class="stub"2
3
×class="stub"2
7
+class="stub"2
3
×class="stub"5
7

=(class="stub"2
7
+class="stub"5
7
)×class="stub"2
3

=1×class="stub"2
3

=class="stub"2
3


(4)24×(class="stub"3
4
+class="stub"5
6
),
=24×class="stub"3
4
+24×class="stub"5
6

=18+20,
=38.

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