计算下面各题,能简算的用简便方法计算2272-6360÷24[6.85-(0.65+0.7)]÷2.5(910-45×58)÷512(58+127)×8+1927.-数学

题目简介

计算下面各题,能简算的用简便方法计算2272-6360÷24[6.85-(0.65+0.7)]÷2.5(910-45×58)÷512(58+127)×8+1927.-数学

题目详情

计算下面各题,能简算的用简便方法计算
2272-6360÷24
[6.85-(0.65+0.7)]÷2.5
9
10
-
4
5
×
5
8
)÷
5
12

5
8
+
1
27
)×8+
19
27
题型:解答题难度:中档来源:不详

答案

(1)2272-6360÷24
=2272-265,
=2007;

(2)[6.85-(0.65+0.7)]÷2.5
=[6.85-1.35]÷2.5,
=5.5÷2.5,
=2.2;

(3)(class="stub"9
10
-class="stub"4
5
×class="stub"5
8
)÷class="stub"5
12

=(class="stub"9
10
-class="stub"1
2
)×class="stub"12
5

=class="stub"2
5
×class="stub"12
5

=class="stub"24
25


(4)(class="stub"5
8
+class="stub"1
27
)×8+class="stub"19
27

=class="stub"5
8
×8
+class="stub"1
27
×8+class="stub"19
27

=8+(class="stub"8
27
+class="stub"19
27
),
=8+1,
=9.

更多内容推荐