関連ワード:  is a negative minus a negative equal a negative    is a negative times a negative equal a negative    is a negative divided by a negative equal a negative    does a negative divided by a negative equal a negative    does a negative times a negative negative equal a positive    can you subtract a negative from a negative    is a negative minus a negative a negative    what does a negative minus a negative equal  
結果 : is a negative minus a negative equal a negative