STANDARD 8.EE.A.3 Use numbers
expressed in the form of a single digit times a whole-number power of 10 to
estimate very large or very small quantities, and to express how many times
as much one is than the other. For example, estimate the population of the
United States as 3 times 10^{8} and the population of the world as 7
times 10^{9}, and determine that the world population is more than
20 times larger. |