题目内容
计算:
(1)-7-3=______;
(2)
-
=______
(3)(-1)2011-(-1)2010=______.
(1)-7-3=______;
(2)
| 1 |
| 2 |
| 2 |
| 3 |
(3)(-1)2011-(-1)2010=______.
(1)-7-3=-10;
(2)
-
=
-
=-
;
(3)(-1)2011-(-1)2010
=-1-1
=-2.
故答案为:-10;-
;-2.
(2)
| 1 |
| 2 |
| 2 |
| 3 |
| 3 |
| 6 |
| 4 |
| 6 |
| 1 |
| 6 |
(3)(-1)2011-(-1)2010
=-1-1
=-2.
故答案为:-10;-
| 1 |
| 6 |
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