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SEAMO 2016 — Paper D — Grade 7–8 Question 9

SEAMO · SEAMO 2016 — Paper D — Grade 7–8

Question 9

Evaluate $100^2-99^2+98^2-97^2+\cdots+2^2-1^2$.
  1. $100$
  2. $500$
  3. $1000$
  4. $2000$
  5. None of the above