怎样算简便就怎样算.58+57+38+27715×80%+715÷515÷(4-514-914)113÷56×1511240÷(1-23)×231÷50%+0÷50%-数学

题目简介

怎样算简便就怎样算.58+57+38+27715×80%+715÷515÷(4-514-914)113÷56×1511240÷(1-23)×231÷50%+0÷50%-数学

题目详情

怎样算简便就怎样算.
5
8
+
5
7
+
3
8
+
2
7
7
15
×80%+
7
15
÷5
1
5
÷(4-
5
14
-
9
14
11
3
÷
5
6
×
15
11
240÷(1-
2
3
)×
2
3
1÷50%+0÷50%
题型:解答题难度:中档来源:不详

答案

(1)class="stub"5
8
+class="stub"5
7
+class="stub"3
8
+class="stub"2
7

=(class="stub"5
8
+class="stub"3
8
)+(class="stub"5
7
+class="stub"2
7
),
=1+1,
=2;

(2)class="stub"7
15
×80%+class="stub"7
15
÷5,
=class="stub"7
15
×class="stub"4
5
+class="stub"7
15
×class="stub"1
5

=class="stub"7
15
×(class="stub"4
5
+class="stub"1
5
),
=class="stub"7
15
×1,
=class="stub"7
15


(3)class="stub"1
5
÷(4-class="stub"5
14
-class="stub"9
14
),
=class="stub"1
5
÷[4-(class="stub"5
14
+class="stub"9
14
)],
=class="stub"1
5
÷[4-1],
=class="stub"1
5
÷3,
=class="stub"1
5
×class="stub"1
3

=class="stub"1
15


(4)class="stub"11
3
÷class="stub"5
6
×class="stub"15
11

=class="stub"11
3
×class="stub"6
5
×class="stub"15
11

=6;

(5)240÷(1-class="stub"2
3
)×class="stub"2
3

=240÷class="stub"1
3
×class="stub"2
3

=240×3×class="stub"2
3

=480;

(6)1÷50%+0÷50%,
=1÷0.5+0,
=2.

更多内容推荐