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IMAS 2017 — Junior — Round 1 Question 1

IMAS · IMAS 2017 — Junior — Round 1

Question 1

What is the simplified value of $\sqrt{(-18)^2}-1^{2016}-(-1)^{2017}$?
  1. $-20$
  2. $-18$
  3. $0$
  4. $16$
  5. $18$