脱式计算.893÷19+84×25(2.5-2.5×0.6)÷447÷23-514×35920÷[12×(25+45)].-六年级数学

题目简介

脱式计算.893÷19+84×25(2.5-2.5×0.6)÷447÷23-514×35920÷[12×(25+45)].-六年级数学

题目详情

脱式计算.
893÷19+84×25
(2.5-2.5×0.6)÷4
4
7
÷
2
3
-
5
14
×
3
5
9
20
÷[
1
2
×(
2
5
+
4
5
)].
题型:解答题难度:中档来源:不详

答案

(1)893÷19+84×25,
=47+2100,
=2147;

(2)(2.5-2.5×0.6)÷4,
=(2.5-1.5)÷4,
=1÷4,
=class="stub"1
4


(3)class="stub"4
7
÷class="stub"2
3
-class="stub"5
14
×class="stub"3
5

=class="stub"4
7
×class="stub"3
2
-class="stub"5
14
×class="stub"3
5

=class="stub"6
7
-class="stub"3
14

=class="stub"9
14


(4)class="stub"9
20
÷[class="stub"1
2
×(class="stub"2
5
+class="stub"4
5
)],
=class="stub"9
20
÷[class="stub"1
2
×class="stub"6
5
],
=class="stub"9
20
÷class="stub"3
5

=class="stub"3
4

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