Question 54
The value of the expression $10^{2016} - 10^{15}$ is a natural number. What is the sum of the digits of this natural number?
(A) 1
(B) 17
(C) 2001
(D) 18000
(E) 18009
(A) 1
(B) 17
(C) 2001
(D) 18000
(E) 18009
MathNet 2016-part-05 — 184 problems (EN–VI) Question 54
Math Olympiad Vault · MathNet 2016-part-05 — 184 problems (EN–VI)