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TIMO 2021 Grade 2 Preliminary Set 2 Question 11

TIMO · TIMO 2021 Grade 2 Preliminary Set 2

Question 11

Determine whether the sum $1+2+3+4$ + … + 9 is odd or even.

Question illustration
  1. Odd
  2. Even
  3. Both odd and even
  4. Neither odd nor even