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IMAS 2019 — Upper Primary Grades 5–6 — Round 1 Question 3

IMAS · IMAS 2019 — Upper Primary Grades 5–6 — Round 1

Question 3

Which of the following statements is correct for the approximation of the "rounding method"?
  1. When representing approximations of numbers, 3.00 is the same as 3.0.
  2. The approximation 4.0 is as precise as 4.
  3. The result in approximation of $2.019\times0.5$ to the nearest thousandth is
    1.009.
  4. If the approximate value of a certain number is 3, then this number must be less than 3.05.
  5. The approximation of repeating decimal number $2.\overline{019}=2.019019\ldots$ to the fifth place after the decimal point is 2.01902.