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Counting Significant Figures. Counting: With a decimal: Without a decimal: Try these!! Extra Practice: http://science.widener.edu/svb/tutorial/sigfigures.html http://antoine.frostburg.edu/chem/senese/101/measurement/sigfig-quiz.shtml. Rules of Significant Figures.
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Counting Significant Figures • Counting: • With a decimal: • Without a decimal: • Try these!! • Extra Practice: • http://science.widener.edu/svb/tutorial/sigfigures.html • http://antoine.frostburg.edu/chem/senese/101/measurement/sigfig-quiz.shtml
Rules of Significant Figures • Use http://en.wikipedia.org/wiki/Significance_arithmetic • How do we know how many figures (numbers) to write when we are adding or subracting 2 or more numbers? • Using this information, find the answer to the following: • 2.1 + 2.11 = • 15 + 5 + 6.12= • 86.232 – 5.00 = • How do we know how many figures (numbers) to write when we are multiplying or dividing 2 or more numbers? • Using this information, find the answer to the following: • 35.72 (0.00590) = • 6810.2 / 2.4 = • 4450 ÷ 5.00 =
Significant Figure Practice • http://science.widener.edu/svb/tutorial/sigfigures.html • http://antoine.frostburg.edu/chem/senese/101/measurement/sigfig-quiz.shtml