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Year 3 · Place Value

Round to the nearest 10

A number line shows numbers in order. Equal jumps mean equal amounts.

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How to do it

  1. Find two labelled numbers and work out the size of one jump.
  2. Count jumps from a labelled number to the mark you need.

Worked example

42 to the nearest 10
42 is between 40 and 50; halfway is 45.
42 is before halfway, so 40

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Watch out
Count the jumps, not the marks.

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