题目内容

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
].
(9)(4-4×
4
3
)÷
4
9

=(4-
4
3
)÷
4
9

=
4
3
×
9
4

=3

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

=
6
94


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

=9.
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