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SEAMO 2019 — Paper B — Grade 3–4 Question 11

SEAMO · SEAMO 2019 — Paper B — Grade 3–4

Question 11

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