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HKIMO 2026 Grade 3 National Preliminary Set 03 Question 7

HKIMO · HKIMO 2026 Grade 3 National Preliminary Set 03

Question 7

Calculate $11+15+19+23+27+31+35+39+43+47+51$.
  1. 572
  2. 341
  3. 682
  4. 314