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1. Give the number of significant figures in each of the  following.  a)  1.05 g   ______

Sig. Figs. In class practice #1. 1. Give the number of significant figures in each of the  following.  a)  1.05 g   ______  b)  0.0003040 mm  ______  c)  29000 + 10 ft  ______  d)  0.90 x 1045 L  ______  e)  the number of eggs (12) that make up a dozen         ______

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1. Give the number of significant figures in each of the  following.  a)  1.05 g   ______

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  1. Sig. Figs. In class practice #1 1. Give the number of significant figures in each of the  following.  a)  1.05 g   ______  b)  0.0003040 mm  ______  c)  29000 + 10 ft  ______  d)  0.90 x 1045 L  ______  e)  the number of eggs (12) that make up a dozen         ______ 2. Determine the answer for each of the following.  Be sure to  use the correct number of significant figures. a)   17.34+ 4.900 +23.1                                                          b)     9.80-  4.762 c)  3.9 x 6.05 x 420 =                                           d)  14.1 / 5  = 3. Round each of the following to 3 significant figures.  a. 77.0653  ____________     b. 6,300,178.2  ______________ c.  0.00023350   _____________      d. 10.2030   _______________  e. 2.895 x 1021   ______________

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