来自马士华的问题
简便计算:899998-799999+89998-79999+8998-7999+898-799+88-79
简便计算:899998-799999+89998-79999+8998-7999+898-799+88-79
1回答
2020-06-26 12:15
简便计算:899998-799999+89998-79999+8998-7999+898-799+88-79
简便计算:899998-799999+89998-79999+8998-7999+898-799+88-79
899998-799999+89998-79999+8998-7999+898-799+88-79
=(900000-800000+90000-80000+9000-8000+900-800+90-80)-5
=111110-5
=111105