[求助][讨论]哪位NN能帮忙解答一下吗？多谢了！！！

ninaliu

Q14:

If 10⁵⁰ - 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
Answer is C, how to get it??? Please help! Thanks!

IS it write as equation 10⁵⁰ - 74= 10^{x  ?}  

^{How to simplify it?} 

robert

求的是数字和

最后两位是26，其它的48位都是9，所以是9*48+2+6=440

realheart

同意二当家的分析

frankdong

二当家都出手了，呵呵。

ninaliu

Thanks, 二当家, I got it!