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计算下面各题,能简算的简算.37×85+47÷5834×40%+0.75×355-78-0.1251835÷0.9×56

题目详情
计算下面各题,能简算的简算.
3
7
×
8
5
+
4
7
÷
5
8
3
4
×40%+0.75×
3
5
5-
7
8
-0.125
18
35
÷0.9×
5
6
▼优质解答
答案和解析
(1)
3
7
×
8
5
+
4
7
÷
5
8

=
3
7
×
8
5
+
4
7
×
8
5

=(
3
7
+
4
7
)×
8
5

=1×
8
5

=
8
5


(2)
3
4
×40%+0.75×
3
5

=0.75×0.4+0.75×0.6,
=0.75×(0.4+0.6),
=0.75×1,
=0.75;

(3)5-
7
8
-0.125,
=5-0.875-0.125,
=5-(0.875+0.125),
=5-1,
=4;

(4)
18
35
÷0.9×
5
6

=
4
7
×
5
6

=
10
21