题目内容
(1)
÷(-5)=______;
(2)(-0.8)×(-0.5)=______;
(3)(-1)2011-(-1)2010=______.
| 1 |
| 5 |
(2)(-0.8)×(-0.5)=______;
(3)(-1)2011-(-1)2010=______.
(1)
÷(-5)=
×(-
)=-
;
(2)(-0.8)×(-0.5)=0.8×0.5=0.4;
(3)(-1)2011-(-1)2010,
=-1-1,
=-2.
故答案为:-
,0.4,-2.
| 1 |
| 5 |
| 1 |
| 5 |
| 1 |
| 5 |
| 1 |
| 25 |
(2)(-0.8)×(-0.5)=0.8×0.5=0.4;
(3)(-1)2011-(-1)2010,
=-1-1,
=-2.
故答案为:-
| 1 |
| 25 |
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