怎样算简便就怎样算.18×711+411×1823+76×314187-12÷34-1345×(15+13)7÷79-79÷723÷[914×(56-49)].-数学

题目简介

怎样算简便就怎样算.18×711+411×1823+76×314187-12÷34-1345×(15+13)7÷79-79÷723÷[914×(56-49)].-数学

题目详情

怎样算简便就怎样算.
1
8
×
7
11
+
4
11
×
1
8
2
3
+
7
6
×
3
14
18
7
-
1
2
÷
3
4
-
1
3
45×(
1
5
+
1
3
7
9
-
7
9
÷7
2
3
÷[
9
14
×(
5
6
-
4
9
)].
题型:解答题难度:中档来源:不详

答案

(1)class="stub"1
8
×class="stub"7
11
+class="stub"4
11
×class="stub"1
8

=(class="stub"7
11
+class="stub"4
11
)×class="stub"1
8

=1×class="stub"1
8

=class="stub"1
8


(2)class="stub"2
3
+class="stub"7
6
×class="stub"3
14

=class="stub"2
3
+class="stub"1
4

=class="stub"8
12
+class="stub"3
12

=class="stub"11
12


(3)class="stub"18
7
-class="stub"1
2
÷class="stub"3
4
-class="stub"1
3

=class="stub"18
7
-class="stub"2
3
-class="stub"1
3

=class="stub"18
7
-(class="stub"2
3
+class="stub"1
3
),
=class="stub"18
7
-1,
=class="stub"11
7


(4)45×(class="stub"1
5
+class="stub"1
3
),
=45×class="stub"1
5
+45×class="stub"1
3

=9+15,
=24;

(5)7÷class="stub"7
9
-class="stub"7
9
÷7,
=7×class="stub"9
7
-class="stub"7
9
×class="stub"1
7

=9-class="stub"1
9

=8class="stub"8
9


(6)class="stub"2
3
÷[class="stub"9
14
×(class="stub"5
6
-class="stub"4
9
)],
=class="stub"2
3
÷[class="stub"9
14
×class="stub"7
18
],
=class="stub"2
3
×4,
=class="stub"8
3

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