Brazil population: 1.907×[tex]10^{8}[/tex]
Mexico population 1.123×[tex]10^{8}[/tex]
To find how much more the population was in Brazil than in mexico, you would subtract the Brazil population to Mexico's population:
The [tex]10^{8}[/tex]'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[tex]10^{8}[/tex]
Brazil's population is 0.784×[tex]10^{8}[/tex] larger than Mexico.