Question 419964
the mass of a grain of salt is about 10 to the power of negative 4.
 about how many grains of salt in a box containing 100 grams of salt? 
:
100 = 10^2 gram
:
{{{10^2/10^-4}}} = {{{10^(2+4)}}} = 10^6 grains of salt (a million)