看谁算得准(能简算要简算).(58+227)×8920÷[32×(25+45)]41×9.9+4.1.-数学

题目简介

看谁算得准(能简算要简算).(58+227)×8920÷[32×(25+45)]41×9.9+4.1.-数学

题目详情

看谁算得准(能简算要简算).
(
5
8
+
2
27
)×8
9
20
÷[
3
2
×(
2
5
+
4
5
)]
41×9.9+4.1.
题型:解答题难度:中档来源:不详

答案

(1)(class="stub"5
8
+class="stub"2
27
)×8,
=class="stub"5
8
×
8+class="stub"2
27
×
8,
=5+class="stub"16
27

=5class="stub"16
27


(2)class="stub"9
20
÷
[class="stub"3
2
×(class="stub"2
5
+class="stub"4
5
)],
=class="stub"9
20
÷[class="stub"3
2
×class="stub"6
5
],
=class="stub"9
20
÷class="stub"9
5

=class="stub"9
20
×class="stub"5
9

=class="stub"1
4


(3)41×9.9+4.1,
=4.1×99+4.1,
=(99+1)×4.1,
=100×4.1,
=410.

更多内容推荐