Decimals - Working with significant figures - Alphareach

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Working with significant figures

Identifying significant-figures

Non-zero digits are always significant.
Zeros between non-zero digits are always significant.
Leading zeros are never significant.
Trailing zeros are only significant if the number contains a decimal point.

Identify significant figures

		Number of significant figures:	Significant figures are:
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Round to the nearest one significant figure

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Round to the nearest two significant figures

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Round to the nearest three significant figures

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Round significant figures

Round to:		1 s.f.	2 s.f.	3 s.f.	4 s.f.
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