Answers

2014-02-07T19:43:51+01:00
Significant figures are the digits of a number that are used to express it to the required degree of accuracy,starting from the first non-zero digit. Significant figures don't include zeros however.
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2014-02-08T11:26:49+01:00
 the figures of a number that express a magnitude to a specified degree of accuracy, rounding up or down the final figure.
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