脱式计算51.6÷[(325-1.25)×45](56-34)÷(14+16)-数学

题目简介

脱式计算51.6÷[(325-1.25)×45](56-34)÷(14+16)-数学

题目详情

脱式计算
51.6÷[(3
2
5
-1.25)×
4
5
]
5
6
-
3
4
)÷(
1
4
+
1
6
题型:解答题难度:中档来源:不详

答案

(1)51.6÷[(3class="stub"2
5
-1.25)×class="stub"4
5
],
=51.6÷[(3.4-1.25)×class="stub"4
5
],
=51.6÷[2.15×class="stub"4
5
],
=51.6÷1.72,
=30;

(2)(class="stub"5
6
-class="stub"3
4
)÷(class="stub"1
4
+class="stub"1
6
),
=class="stub"1
12
÷class="stub"5
12

=class="stub"1
12
×class="stub"12
5

=class="stub"1
5

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