Skip to content / Đến nội dung
ThichHocToan.com

Australian AMC 2017 - Senior Question 7

AMC AUSTRALIA · Australian AMC 2017 - Senior

Question 7

$200-199+198-197+196-\cdots+2-1$ is equal to
  1. 1
  2. 99
  3. 100
  4. 101
  5. 200