问题
填空题
化简下列各数: -(-68)=______,-(+0.75)=______,(-
-(+3.8)=______,+(-3)=______,+(+6)=______. |
答案
-(-68)=68,-(+0.75)=-0.75,(-
)=-3 5
;3 5
-(+3.8)=-3.8,+(-3)=-3,+(+6)=6.
化简下列各数: -(-68)=______,-(+0.75)=______,(-
-(+3.8)=______,+(-3)=______,+(+6)=______. |
-(-68)=68,-(+0.75)=-0.75,(-
)=-3 5
;3 5
-(+3.8)=-3.8,+(-3)=-3,+(+6)=6.