问题 解答题
计算:
(1)(-2)+(-3)-(+1)-(-6)
(2)-1
1
2
×(
1
3
-1)÷|-
1
13
|

(3)(-
1
3
)×3÷3×(-
1
9
)

(4)(
1
3
-
1
2
)×(-6)+(-
1
2
)2÷(-
1
2
)3
答案

(1)(-2)+(-3)-(+1)-(-6)

=(-2)+(-3)+(-1)+6

=(-6)+6

=0;

(2)-1

1
2
×(
1
3
-1)÷|-
1
13
|

=-

3
2
×(-
2
3
)×13

=1×13

=13;

(3)(-

1
3
)×3÷3×(-
1
9

=-

1
3
×3×
1
3
×(-
1
9

=

1
27

(4)(

1
3
-
1
2
)×(-6)+(-
1
2
2÷(-
1
2
3

=

1
3
×(-6)-
1
2
×(-6)+(-
1
2
-1

=-2+3+(-2)

=-4+3

=-1.

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