能简算的要简算(23-12)×35÷9101112×16+56×111240%×920+0.45×70%-45%×0.1.-数学

题目简介

能简算的要简算(23-12)×35÷9101112×16+56×111240%×920+0.45×70%-45%×0.1.-数学

题目详情

能简算的要简算
2
3
-
1
2
)×
3
5
÷
9
10
11
12
×
1
6
+
5
6
×
11
12
40%×
9
20
+0.45×70%-45%×0.1.
题型:解答题难度:中档来源:不详

答案

(1)(class="stub"2
3
-class="stub"1
2
)×class="stub"3
5
÷class="stub"9
10

=(class="stub"4
6
-class="stub"3
6
)×class="stub"3
5
×class="stub"10
9

=class="stub"1
6
×class="stub"3
5
×class="stub"10
9

=class="stub"1
9


(2)class="stub"11
12
×class="stub"1
6
+class="stub"5
6
×class="stub"11
12

=class="stub"11
12
×
class="stub"1
6
+class="stub"5
6
),
=class="stub"11
12
×1

=class="stub"11
12


(3)40%×class="stub"9
20
+0.45×70%-45%×0.1,
=40%×0.45+0.45×70%-0.45×0.1,
=0.45×(40%+70%-0.1),
=0.45×(1.1-0.1),
=0.45.

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