计算 1.135+3.346+5.557+7.768+9.979=_.

计算 1.135+3.346+5.557+7.768+9.979=_.

题目
计算 1.135+3.346+5.557+7.768+9.979=______.
答案
1.135+3.346+5.557+7.768+9.979,
=1.135+3.346+5.557+(5.557+2.211)+(5.557+4.422),
=1.135+3.346+5.557+5.557+2.211+5.557+4.422,
=(1.135+4.422)+(3.346+2.211)+5.557+5.557+5.557,
=5.557+5.557+5.557+5.557+5.557,
=5.557×5,
=27.785;
故答案为:27.785.
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
奥巴马演讲不用看稿子.为什么中国领导演讲要看?
想找英语初三上学期的首字母填空练习……
英语翻译
1,人们染上烟瘾,最终因吸烟使自己丧命.
最新试题
热门考点

超级试练试题库

© 2017-2019 超级试练试题库,All Rights Reserved.