Everyday Maths 2

2.3 Rounding to a degree of accuracy

Watch the short video below to see an example of how to round to one, two and three decimal places.

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Remember this rounding rhyme to help you:

Figure 3 A rounding rhyme
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Activity 5: Rounding skills

Practise your rounding skills by completing the below.

  1. What is 24.638 rounded to one decimal place?

  2. What is 13.4752 rounded to two decimal places?

  3. What is 203.5832 rounded to two decimal places?

  4. What is 345.6795 rounded to three decimal places?

Answer

  1. 24.6

  2. 13.48

  3. 203.58

  4. 345.680

Summary

In this section you have learned:

  • how to decide whether an answer to a division calculation needs to be to rounded up or down, depending on the context of the question

  • how and when to use rounding to approximate an answer to a calculation

  • how to round an answer to a given degree of accuracy – e.g. rounding to two decimal places.

OpenLearn - Everyday Maths 2
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