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Oak MathsTest · Maths

Rounding integers to one significant figure

The starter and exit quiz of the lesson “Rounding integers to one significant figure”, from the unit “Estimation and rounding” (Year 8 Maths) by Oak National Academy.

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Oak National Academy

12 questions

  1. A degree of ___ shows how precise a number or measurement is. Examples are: to the nearest cm, to the nearest 10, to 1 s.f. and 2 d.p.
  2. Round 15.076 to two decimal places.
  3. Round 0.0504 to one decimal place.
  4. Round 20.961 to 1 decimal place.
  5. Calculate the cost of carpeting this area.
  6. 3 friends go out for lunch and spend £31. They pay the same amount each. What is the smallest amount they each pay to cover the cost of the bill?
  7. The first significant figure is the first non-___ digit in a number.
  8. Select all the numbers which have 4 as the first significant figure.
  9. In the number 654 023, in which column is the first significant figure?
  10. Match each number to its value when it is rounded to one significant figure.
  11. Round 654 023 to one significant figure.
  12. What value could the missing digit be in 3\square89 = 4000 (to 1 s.f.)?

License: OGL

Rounding integers to one significant figure · Examplary