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					Name ______________________________                    Date ___________________

                                SIGNIFICANT FIGURES WS
1. How many significant figures are there in each of the following measurements? (Include correct
      units)

      a. 23 cm       ________                          k. 307 g      ________

      b. 1.498 g     ________                          l. 1.40082 cm      ________

      c. 248.3 s     ________                          m. 0.00058900 g      ________

      d. 9.855 mL ________                             n. 4500 km _________

      e. 76.414 kg    ________                         o. 350000 cm       ________

      f. 32.8 m      ________                          p. 180.00 s _________

      g. 107 mm      ________                          q. 3.50 x103 cm     __________

      h. 0.238 km     ________                         r. 1.604 x 104 m    _________

      i. 8.0335 cm ________                            s. 14.380 s     ___________

      j. 0.05587 m ________                            t. 3.45000 m     ___________



2. Express the answer to each of the following calculations with the correct numbers of significant
      figures. (Include correct units)

      a. 1.2 cm x 1.3 cm          ________________

      b. 2.1 m x 1.8 m            ________________

      c. 1.45 m x 2.2 m           ________________

      d. 2.5 mm x 1.33 mm         ________________

      e. 4.3324 km x 1.2 km       ________________

      f. 3.0 cm x 4.000 cm        ________________

      g. 2.005 cm x 5.0 cm        ________________

      h. 400 m x 87488 m          ________________

      i. 2.3 x 106 m x 1.45 x 102 m      _____________________

      j. 8.71 x 102 mm x 1.0 x 102 mm           ____________________

      k. 32.88 m2 ÷ 4.388 m       ______________________
      l. 16.5 km2 ÷ 1.8 km        ____________________

      m. 84.99 m2 ÷ 2.63 m        ____________________

      n. 9.9 mm2 ÷ 3.4484 mm         _____________________

      o. 3.085 cm2 ÷ 2.77448 cm          _____________________

      p. 0.0045 mm2 ÷ 0.90 mm            _____________________

      q. 120 km2 ÷ 8.56 km         ______________________

      r. 0.7600 mm3 ÷ 1.50 mm          ______________________

      s. 4.80 x 105 m2 ÷ 8.5 x 103 m        _________________________

      t. 6.30 x 100 m3 ÷ 0.0804 m         __________________________



3. Express the answer to each of the following calculations with the correct number of significant
      figures. (Include correct units)

      a. 3.42 cm + 8.13 cm        _____________

      b. 4.939 g + 3.822 g        _____________

      c. 17.8 cm + 12.11 cm       _____________

      d. 4.552 kg + 3.14 kg       _____________

      e. 1.966 s + 3.4422 s       _____________

      f. 80 cm + 13.0 cm          _____________

      g. 72.60 m + 0.0950 m       _____________

      h. 13.89 cm + 6.8932 cm        _______________

      i. 1.30 x 102 cm + 2.4 x 104 cm       _______________

      j. 8.19 x 103 m + 1.400 x 104 m       _______________

      k. 3.882 g - 2.114 g      ____________________

      l. 4.894 cm - 2.33 cm       _____________________

      m. 15.6674 m - 12.838 m         _____________________

      n. 11.22 g - 8.8 g      ________________________

      o. 133 L - 6.45 L      ________________________

      p. 750 cm - 677.4 cm        ________________________
q. 10000 m - 94 m      ______________________

r. 0.0890 cm - 0.0666 cm      ____________________

s. 0.340 x 101 g - 1.20 x 102 g   ________________________

t. 4.5 x 105 km - 3.10 x 103 km   _________________________

				
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posted:8/19/2012
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