化简下列各数:-(-68)=______-(+3.8)=______-[+(-3
题型:填空题
问题:
化简下列各数: -(-68)=______ -(+3.8)=______ -[+(-3
-(+0.75)=______ +(-3)=______ -[-(+2)]=______ -(-
+(+6)=______ -[-(-2)]=______. |
化简下列各数: -(-68)=______ -(+3.8)=______ -[+(-3
-(+0.75)=______ +(-3)=______ -[-(+2)]=______ -(-
+(+6)=______ -[-(-2)]=______. |