问题 解答题
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(1)-5+|8|-(+6)+(-2)
(2)3×(-4)+(-28)÷7
(3)(-
3
5
1
3
×3(-1
1
9
)

(4)4×(-3)2-15÷(-3)-50
(5)|-
7
9
2
3
-
1
5
)-
1
3
×(-4)2

(6)-32×(-2)+(-4)2-(-2)÷
1
2
答案

(1)-5+|8|-(+6)+(-2)

=-5+8-6-2

=-5;

(2)3×(-4)+(-28)÷7

=-12-4

=-16;

(3)(-

3
5
1
3
×3(-1
1
9
)

=(-

3
5
)×3×3×(-
10
9

=6;

(4)4×(-3)2-15÷(-3)-50

=4×9+5-50

=36+5-50

=-9;

(5)|-

7
9
|÷(
2
3
-
1
5
)-
1
3
×(-4)2

=

7
9
×
15
7
-
1
3
×
16

=

5
3
-
16
3

=-

11
3

(6)-32×(-2)+(-4)2-(-2)÷

1
2

=-9×(-2)+16-(-2)×2

=18+16+4

=38.

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