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Quiz: Significant Figures

1. A mile is defined as 5280 feet. How many significant figures does this number have?
40The number is exact.3
2. Correctly rounded, the sum of 1.2 x 10-3 cm and 2.7 x 10-4 cm is
0.0014 cm0.0015 cm0.001 cm0.00147 cm0.002 cm
3. The number of significant digits in 4900 is
at least 2exactly 4at most 2at least 4
4. The number of significant digits in 540.00610 is
46875
5. Correctly rounded, 20.0030 - 0.491 g =
19.5 g 19.5120 g19.51 g20 g19.512 g
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General Chemistry Online! Quiz: Significant figures

Copyright © 1997-2005 by Fred Senese
Comments & questions to fsenese@frostburg.edu
Last Revised 06/16/05.URL: http://antoine.frostburg.edu/chem/senese/101/measurement/sigfig-quiz.shtml