脱式计算45×27+45÷75(1375+450÷18)×2000.4÷(2.4×4-36×0.25)329-65×57-217.-数学

题目简介

脱式计算45×27+45÷75(1375+450÷18)×2000.4÷(2.4×4-36×0.25)329-65×57-217.-数学

题目详情

脱式计算
4
5
×
2
7
+
4
5
÷
7
5
(1375+450÷18)×200
0.4÷(2.4×4-36×0.25)3
2
9
-
6
5
×
5
7
-2
1
7
题型:解答题难度:中档来源:不详

答案

class="stub"4
5
×class="stub"2
7
+class="stub"4
5
÷class="stub"7
5

=class="stub"8
35
+class="stub"20
35

=class="stub"4
5

(1375+450÷18)×200,
=(1375+25)×200
=280000;
0.4÷(2.4×4-36×0.25),
=0.4÷(9.6-9),
=0.4÷0.6,
=class="stub"2
3

3class="stub"2
9
-class="stub"6
5
×class="stub"5
7
-2class="stub"1
7

=3class="stub"2
9
-class="stub"6
7
-2class="stub"1
7

=3class="stub"2
9
-(class="stub"6
7
+2class="stub"1
7
),
=3class="stub"2
9
-3,
=class="stub"2
9

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