When $$\(N=10^{100}-10^{50}-1\)$$ is expressed as an integer in standard form, what is the sum of the digits of $$\(N\)$$ ?
A.
150
B.
151
C.
899
D.
900
Exam No：2022 First Round Grades 8-9 Year：2022 Question No：17
Answer:
C
Knowledge points:
G8-9 - Number Theory - Digit Logic & Manipulation
Solution:
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