注意审题,细心计算.(2-2×2个)÷29;52÷[12÷(个4-2个)];15÷[(2125-4.24)×1个].-数学

题目简介

注意审题,细心计算.(2-2×2个)÷29;52÷[12÷(个4-2个)];15÷[(2125-4.24)×1个].-数学

题目详情

注意审题,细心计算.
(2-2×
2
)÷
2
9

5
2
÷[
1
2
÷(
4
-
2
)];
1
5
÷[(
21
25
-4.24)×
1
].
题型:解答题难度:中档来源:不详

答案

(9)(4-4×class="stub"4
3
)÷class="stub"4
9

=(4-class="stub"4
3
)÷class="stub"4
9

=class="stub"4
3
×class="stub"9
4

=3

(4)class="stub"6
6
÷[class="stub"9
6
÷(class="stub"3
4
-class="stub"4
3
)]
=class="stub"6
6
÷[class="stub"9
6
÷class="stub"9
94
]
=class="stub"6
6
÷[class="stub"9
6
×94]
=class="stub"6
6
÷4
=class="stub"6
6
×class="stub"9
4

=class="stub"6
94


(3)class="stub"9
6
÷[(class="stub"49
46
-二.44)×class="stub"9
3
]
=class="stub"9
6
÷[(class="stub"49
46
-class="stub"6
46
)×class="stub"9
3
]
=class="stub"9
6
÷[class="stub"3
6
×class="stub"9
3
]
=class="stub"9
6
÷class="stub"9
6

=9.

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