Understanding Significant Figures

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All nonzero digits in a number

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significant

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Zeros between nonzero digits (e.g., 205)

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figures

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Leading zeros (e.g., 0.0045)

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significant

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Trailing zeros after decimal (e.g., 2.300)

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figures

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Number of significant figures in 0.070

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significant figures

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Significant figures in 1.0050

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significant figures

Front

Identify significant figures in 4000 (no decimal)

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significant figure

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Back

significant figures

Front

Rounding 3.4567 to 3 significant figures

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3.46

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significant figures