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Cambridge IGCSE Mathematics

1.10Limits of accuracy

Limits of accuracy in Cambridge IGCSE Mathematics: what the syllabus expects you to know, the learning objectives and how to practise.
Subtopic20 practice questions1 lesson

Learning objectives

What the syllabus expects you to be able to do.

  1. 1.10.1State the upper and lower bounds of a value that has been rounded to a given accuracy.
  2. 1.10.2Extended: find the upper and lower bounds of the result of a calculation that uses rounded values.

Lessons

  • Limits of accuracy

    30 min

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Sample question

A sample question on this topic. Answer it, check it, then read the worked answer.

Limits of accuracy: sample question

1 mark

A bag of maize meal has a mass of 4.7 kg, correct to 1 decimal place. Write down the upper bound of its mass.

Answer in kg.

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