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Literacy and Numeracy Skills for Maritime Training

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Rounding Numbers

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Help?GPS Coordinates

GPS Coordinates from a chart plotter use decimal minutes to 3 or 4 decimal places.

These must be rounded to one decimal minute to plot on a chart.

Rounding to one decimal place uses the same rules.

Lets round the latitude first.

Round using the 7.

S20° 36.873'

S20° 36.9'    

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Rounding Numbers Help

For more information see the the section about:
  • GPS Position
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