简便计算:899998-799999+89998-79999+8998-7999+898-799+88-79
题目
简便计算:899998-799999+89998-79999+8998-7999+898-799+88-79
答案
899998-799999+89998-79999+8998-7999+898-799+88-79
=(900000-800000+90000-80000+9000-8000+900-800+90-80)-5
=111110-5
=111105
举一反三
我想写一篇关于奥巴马的演讲的文章,写哪一篇好呢?为什么好
最新试题
热门考点