89×(9+34)-23.-数学

题目简介

89×(9+34)-23.-数学

题目详情

8
9
×(9+
3
4
)-
2
3
题型:解答题难度:中档来源:不详

答案

class="stub"8
9
×(9+class="stub"3
4
)-class="stub"2
3

=class="stub"8
9
×9+class="stub"8
9
×class="stub"3
4
-class="stub"2
3

=8+class="stub"2
3
-class="stub"2
3

=8.

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