Rounding and estimation
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Contents

  • Introduction
  • Learning outcomes
  • 1 Rounding
    • 1.1 Rounding in daily life
    • 1.2 Rounding whole numbers
      • 1.2.1 Rounding to the nearest hundred
      • 1.2.2 Rounding to the nearest ten
    • 1.3 Rounding in general
      • 1.3.1 Try some yourself
    • 1.4 Rounding decimals
      • 1.4.1 Try some yourself
    • 1.5 Significant figures
      • 1.5.1 Try some yourself
    • 1.6 Significant figures for numbers less than one
  • 2 Estimation
    • 2.1 Using estimations
      • 2.1.1 Try some yourself
  • 3 Checking your answers
    • 3.1 Have I done the right calculation?
      • 3.1.1 Try some yourself
    • 3.2 Have I used the correct order for my calculation?
      • Try some yourself
    • 3.3 Have I given due consideration to units of measurement?
      • 3.3.1 Try some yourself
    • 3.4 Did I make a rough estimate to act as a check?
      • 3.4.1 Try some yourself
    • 3.5 Does the answer make sense in the real world?
      • 3.5.1 Try some yourself
    • 3.6 Additional practice
      • 3.6.1 Try some yourself
  • Conclusion
  • Keep on learning
  • Acknowledgements

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