题目内容
化简下列各数:
-(-68)=______,-(+0.75)=______,(-
)=______;
-(+3.8)=______,+(-3)=______,+(+6)=______.
-(-68)=______,-(+0.75)=______,(-
| 3 |
| 5 |
-(+3.8)=______,+(-3)=______,+(+6)=______.
-(-68)=68,-(+0.75)=-0.75,(-
)=-
;
-(+3.8)=-3.8,+(-3)=-3,+(+6)=6.
| 3 |
| 5 |
| 3 |
| 5 |
-(+3.8)=-3.8,+(-3)=-3,+(+6)=6.
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