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AMO 2021 – Primary 6 (Grade 6) Question 4

AMO · AMO 2021 – Primary 6 (Grade 6)

Question 4

If the dot pattern shown continues, how many dots are there at step $98$? Figure labels: Step means the step number.

Question illustration
  1. $9999$
  2. $9801$
  3. $10000$
  4. $9898$
  5. $9595$