Maths Resources for Primary and Secondary
Maths Worksheets and Quizzes
ROUNDING, ESTIMATION AND CHECKING

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  • ROUNDING WHOLE NUMBERS
  • Nearest 10
  • Nearest 100 or 1000
  • Using significant figures
  • ROUNDING DECIMALS
  • To nearest whole number
  • To one decimal place
  • To two (or more) decimal places
  • Significant figures (for decimal numbers)
  • ESTIMATING AND CHECKING ANSWERS
  • Rounding 'inputs'
  • Quick approximations
  • Working backwards
  • UPPER AND LOWER BOUNDS
  • Identifying bounds of rounded numbers
  • Calculations to find upper bounds
  • Calculations to find lower bounds
  • Appropriate accuracy for final answers
  • LIMITS OF ACCURACY
  • Limits when rounding
  • Limits when truncating