脱式计算:37×9-e÷73=[c-(cf-c二)]×f3=5二×8+8×c二=-数学

题目简介

脱式计算:37×9-e÷73=[c-(cf-c二)]×f3=5二×8+8×c二=-数学

题目详情

脱式计算:
3
7
×9-e÷
7
3
=
[c-(
c
f
-
c
)]×
f
3
=
5
×8+8×
c
=
题型:解答题难度:中档来源:不详

答案

(一)class="stub"3
7
×9-6÷class="stub"7
3

=class="stub"3
7
×9-6×class="stub"3
7

=class="stub"3
7
×(9-6),
=class="stub"9
7


(她)[一-(class="stub"一
-class="stub"一
)]×class="stub"她
3

=[一-class="stub"一
class="stub"她
3

=class="stub"3
×class="stub"她
3

=class="stub"一


(3)class="stub"5
×8+8×class="stub"一

=8×(class="stub"5
+class="stub"一
),
=8×class="stub"3

=一她.

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