67-67×(23+19).-数学

题目简介

67-67×(23+19).-数学

题目详情

6
7
-
6
7
×(
2
3
+
1
9
)
题型:解答题难度:中档来源:不详

答案

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

=class="stub"4
21

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