问题 解答题
计算:
(1)-2.5÷
5
8
×(-
1
4
)
;(2)-27÷2
1
4
×
4
9
÷(-24)

(3)(-
3
5
)×(-3
1
2
)÷(-1
1
4
)÷3
×(-3
1
2
)
÷(-1
1
4
)÷3
;(4)-4×
1
2
÷(-
1
2
)×2

(5)-5÷(-1
2
7
4
5
×(-2
1
4
)
÷7;(6)|-1
1
8
|÷
3
4
×
4
3
×|-
1
2
|
答案

(1)-2.5÷

5
8
×(-
1
4
)=
5
2
×
8
5
×
1
4
=1;

(2)-27÷2

1
4
×
4
9
÷(-24)=27×
4
9
×
4
9
×
1
24
=
2
9

(3)(-

3
5
)×(-3
1
2
)÷(-1
1
4
)÷3×(-3
1
2
)
÷(-1
1
4
)÷3
=-
3
5
×
7
2
×
4
5
×
1
3
=-
14
25

(4)-4×

1
2
÷(-
1
2
)×2
=2×2×2=8;

(5)-5÷(-1

2
7
4
5
×(-2
1
4
)÷7=-5×
7
9
×
4
5
×
9
4
×
1
7
=-1;

(6)|-1

1
8
|÷
3
4
×
4
3
×|-
1
2
|
=
9
8
×
4
3
×
4
3
×
1
2
=1.

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