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Year 5 · Place Value

Round decimals

Rounding gives a simpler number that is close. Look at the next digit to decide.

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How to do it

  1. Find the place you are rounding to.
  2. Look at the digit just after it.
  3. 5 or more: round up. Less than 5: keep it.

Worked example

3.47 to one decimal place
The digit after the tenths is 7: round up.
3.5

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Rounding 3.45 to one place gives 3.5 (the 5 rounds up).

Practise Round decimals properly

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