712×[(25+13)÷23]÷23.-数学

题目简介

712×[(25+13)÷23]÷23.-数学

题目详情

7
12
×[(
2
5
+
1
3
2
3
2
3
题型:解答题难度:中档来源:不详

答案

class="stub"7
12
×[(class="stub"2
5
+class="stub"1
3
)÷class="stub"2
3
]÷class="stub"2
3

=class="stub"7
12
×[class="stub"11
15
÷class="stub"2
3
]÷class="stub"2
3

=class="stub"7
12
×class="stub"11
10
×class="stub"3
2

=class="stub"77
120
×class="stub"3
2

=class="stub"77
80

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