用递等式计算36÷[(23-25)÷35)]1÷[(712-16)×3]720×(1-514÷57).-数学

题目简介

用递等式计算36÷[(23-25)÷35)]1÷[(712-16)×3]720×(1-514÷57).-数学

题目详情

用递等式计算
36÷[(
2
3
-
2
5
3
5
)]

1÷[(
7
12
-
1
6
)×3]

7
20
×(1-
5
14
÷
5
7
)
题型:解答题难度:中档来源:不详

答案

36÷[(class="stub"2
3
-class="stub"2
5
)÷class="stub"3
5
]
=36÷[class="stub"4
15
×class="stub"5
3
],
=36×class="stub"9
4

=81;

1÷[(class="stub"7
12
-class="stub"1
6
)×3]
=1÷[class="stub"5
12
×
3],
=1×class="stub"4
5

=class="stub"4
5


class="stub"7
20
×(1-class="stub"5
14
÷class="stub"5
7

=class="stub"7
20
×(1-class="stub"1
2
),
=class="stub"7
20
×class="stub"1
2

=class="stub"7
40

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