関連ワード:  is a negative times a negative a positive number    is a negative divided by a negative a positive number    is a negative number times a negative number equal a positive number    is a negative number multiplied by a negative number a positive number    why does a negative times a negative equal a positive number    is a negative number divided by a negative number equal a positive number    does a negative number times a negative number make a positive number    does a negative times a negative equal a positive    is a negative times a negative a positive    why is a negative times a positive always negative  
結果 : is a negative times a negative a positive number