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Lesson 51: Rounding Decimal Numbers — Practice Questions

  1. 1. Round the number 18.472 to the nearest tenth. The result is ___.

  2. 2. When rounding the number 6.739 to the nearest hundredth, which digit do you look at to decide whether to round up or down?

    • A. 6
    • B. 7
    • C. 3
    • D. 9
  3. 3. A shirt costs 52.895 dollars. What is the price rounded to the nearest cent (hundredth of a dollar)? The answer is ___ dollars.

  4. 4. What is the number 45.124 rounded to the nearest hundredth?

    • A. 45.1
    • B. 45.12
    • C. 45.13
    • D. 45.124
  5. 5. Round the number 7.61 to the nearest whole number. The result is ___.

  6. 6. A bag of flour weighs $5.72$ kilograms. What is its weight rounded to the nearest tenth of a kilogram? ___ kg

  7. 7. A race car completed a lap in $28.453$ seconds. What is the lap time rounded to the nearest tenth of a second?

    • A. $28.4$
    • B. $28.5$
    • C. $28.45$
    • D. $28.6$
  8. 8. A rope measures $49.97$ meters long. What is this length rounded to the nearest tenth of a meter? ___ m

  9. 9. To round the number $7.182$ to the nearest tenth, which digit do you look at to decide whether to round up?

    • A. The 7 in the ones place
    • B. The 1 in the tenths place
    • C. The 8 in the hundredths place
    • D. The 2 in the thousandths place
  10. 10. A student calculates a value of $8.149$. What is this value rounded to the nearest tenth? ___