脱式计算16÷(34+12)12÷[(415+35)×713]49×[34-(716-14)][1-(23-12)]÷815.-数学

题目简介

脱式计算16÷(34+12)12÷[(415+35)×713]49×[34-(716-14)][1-(23-12)]÷815.-数学

题目详情

脱式计算
16÷(
3
4
+
1
2
)

1
2
÷[(
4
15
+
3
5
7
13
]

4
9
×[
3
4
-(
7
16
-
1
4
)]

[1-(
2
3
-
1
2
)]÷
8
15
题型:解答题难度:中档来源:不详

答案

16÷(class="stub"3
4
+class="stub"1
2
),
=16÷class="stub"5
4

=12.8;

class="stub"1
2
÷
[(class="stub"4
15
+class="stub"3
5
)×class="stub"7
13
],
=class="stub"1
2
÷[class="stub"13
15
×class="stub"7
13
],
=class="stub"1
2
÷class="stub"7
15

=1class="stub"1
14


class="stub"4
9
×
[class="stub"3
4
-(class="stub"7
16
-class="stub"1
4
)],
=class="stub"4
9
×
[class="stub"3
4
-class="stub"3
16
],
=class="stub"4
9
×class="stub"9
16

=class="stub"1
4


[1-(class="stub"2
3
-class="stub"1
2
)]÷class="stub"8
15

=[1-class="stub"1
6
]÷class="stub"8
15

=class="stub"5
6
÷class="stub"8
15

=1class="stub"9
16

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