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
举报
10^50=10000000....00000(50个0)
10^50-74=9999999...99926(50-2个9)
所以sum=48*9+2+6=440
几个斑竹太强了,我就是没看懂题目啥意思
中国心! 太感谢了
in base 10 notation是什么意思?
I doubt the interpretation "以10为底'? Anybody can discuss it?
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