问题 解答题
[3
1
40
-(0.5+
4
25
)×1
1
4
]÷55%
答案

[3

1
40
-(0.5+
4
25
)×1
1
4
]÷55%,

=[3

1
40
-
33
50
×1
1
4
]÷55%,

=[3

1
40
-
33
50
×1
1
4
11
20

=(3

1
40
-
33
40
)÷
11
20

=2

1
5
×
20
11

=4;

答:算式的结果是4.

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