[5415-(0.25+13)×7.2]÷245.-数学

题目简介

[5415-(0.25+13)×7.2]÷245.-数学

题目详情

[5
4
15
-(0.25+
1
3
)×7.2]÷2
4
5
题型:解答题难度:中档来源:不详

答案

[5class="stub"4
15
-(0.25+class="stub"1
3
)×7.2]÷2class="stub"4
5

=[5class="stub"4
15
-class="stub"7
12
×7.2]÷2class="stub"4
5

=[5class="stub"4
15
-class="stub"21
5
]÷2class="stub"4
5

=class="stub"16
15
×class="stub"5
14

=class="stub"8
21

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