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HKIMO 2026 Grade 6 National Preliminary Set 03 Question 9

HKIMO · HKIMO 2026 Grade 6 National Preliminary Set 03

Question 9

Find $(100+101+102+\cdots+199)\times(41+59+2-102)$.
  1. 29900
  2. 19900
  3. 299
  4. 0