Question

In 2010 the population of Brazil was about 1.907×10 to the 8 power. The population of Mexico is about 1.123×10 to the 8 power. About how much more was the population of Brazil than Mexico?

Answer 1

Brazil population: 1.907×$10^{8}$

Mexico population 1.123×$10^{8}$

To find how much more the population was in Brazil than in mexico, you would subtract the Brazil population to Mexico's population:

The $10^{8}$'s would not cancel out because they are representing further decimal places that aren't written, so you would subtract 1.907 and 1.123.

1.907 - 1.123= 0.784$10^{8}$

Brazil's population is 0.784×$10^{8}$ larger than Mexico.