Scientific notation and significant figures

Intros
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Lessons
  1. Significant figures and scientific notation.
  2. How to use very small or very large numbers.
  3. General rounding rules in science.
Examples
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Lessons
  1. Apply significant figures and scientific notation/standard form to very large and small numbers.
    Boltzmann's constant and Avogadro's number are two important constants in chemistry.
    The approximate value of Boltzmann's constant is 0.0000000000000000000000138064852
    The approximate value of Avogadro's constant is 602214085700000000000000
    1. Round both of these values to 2 decimal places.
      Afterward, round both of these values to 3 significant figures.
    2. Round both of these values to 3 significant figures using standard form.