10的50次方 – 74 is written as an integer in base 10 notation, what is the sum of the digits in that integer? A. 424 B. 433 C. 440 D. 449 E. 467 完全不懂意思??求指导 |
10^50-74=999,xxx,xxx,926. sum of the digits in This
integer=9*48+2+6=440.
waytouing 发表于 2013-6-4 20:40
欢迎光临 国际顶尖MBA申请交流平台--TOPWAY MBA (http://forum.topway.org/) | Powered by Discuz! 7.2 |