関連ワード:  a negative number divided by a negative number equals    a negative number divided by a positive number equals    a negative number multiplied by a negative number equals    a negative number divided by a negative number is    a negative number divided by a negative number is always    a negative number multiplied by a positive number equals    a positive number divided by a negative number is always    a positive number multiplied by a negative number is always    the sign of a negative number divided by a negative number is always    the sign of a positive number divided by a negative number is always  
結果 : a negative number divided by a negative number equals