脱式计算46×8-120÷15(12.5×8-40)÷0.6731÷52+35×73115÷[(23+15)×113].-数学

题目简介

脱式计算46×8-120÷15(12.5×8-40)÷0.6731÷52+35×73115÷[(23+15)×113].-数学

题目详情

脱式计算
46×8-120÷15
(12.5×8-40)÷0.6
7
31
÷
5
2
+
3
5
×
7
31

1
5
÷[(
2
3
+
1
5
)×
1
13
].
题型:解答题难度:中档来源:不详

答案

(1)46×8-120÷15,
=368-8,
=360;

(2)(12.5×8-40)÷0.6,
=(100-40)÷0.6,
=60÷0.6,
=100;

(3)class="stub"7
31
÷class="stub"5
2
+class="stub"3
5
×class="stub"7
31

=class="stub"7
31
×class="stub"2
5
+class="stub"3
5
×class="stub"7
31

=(class="stub"2
5
+class="stub"3
5
)×class="stub"7
31

=1×class="stub"7
31

=class="stub"7
31


(4)class="stub"1
5
÷[(class="stub"2
3
+class="stub"1
5
)×class="stub"1
13
],
=class="stub"1
5
÷[class="stub"13
15
×class="stub"1
13
],
=class="stub"1
5
÷class="stub"1
15

=3.

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