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SEAMO 2017 — Paper C — Grade 5–6 Question 7

SEAMO · SEAMO 2017 — Paper C — Grade 5–6

Question 7

Evaluate $1-2+3-4+\cdots+2015-2016+2017$.
  1. $1006$
  2. $1007$
  3. $1008$
  4. $1009$
  5. None of the above