Significant Figures

Significant Figures Explained

You should always choose an appropriate number of significant figures to display your answers to your calculations:


  • The number of significant figures in your answer should be the same as the least amount of significant figures in the data in the question

  • Leading zeros do not add to the significance of the number

Significant Figures: Example A

This worked example shows how to write an appropriate answer to a question​.

Significant Figures: Example B

This example shows how to choose an appropriate number of significant figures for an answer.

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