How to Calculate Significant Figures

You must use the correct number of significant figures when making measurements.
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When it comes to measurements in the physical sciences, determining significant figures is a crucial skill. From converting measurements, to really any type of equation used in science, using significant figures is the required way to give an estimated answer.

How to Calculate Significant Figures

    Determine if the number is a non-zero digit.

    If the number is a zero, determine if it is between two non zero digits.

    If the number is a zero, determine if it is in a number without a decimal point.

    If the number is a zero, determine if it is to the right of the last non-zero digit within a set of numbers.

    Things You'll Need

    • Pencil with an eraser
    • Piece of scratch paper

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