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Counting the number of significant figures. 

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a) All the figures shown are significant.

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b) The leading zero is not significant, the rest of the figures are significant.

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2

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weight11weight2

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I weigh myself and the digital scales read {weight1} kg. How many significant figures were displayed? [[0]]

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I weigh myself and the digital scales read {weight2} kg. How many significant figures were displayed? [[0]]

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