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SEAMO 2027 - Paper B - SET 08 - Self-study Question 21

SEAMO · SEAMO 2027 - Paper B - SET 08 - Self-study

Question 21

Evaluate $1-2+3-4+5-6+\cdots+2017-2018+2019$.
  1. 1006
  2. 1008
  3. 1010
  4. 1012
  5. None of the above