China has a population of approximately 1,382,323,332 people. The United States has a population of about 324,118,787 people.

Part A
Using scientific notation, give the approximation for each population. Round the first factor to the nearest tenth.

China:
×­ 10
people

United States:
×­ 10
people

Part B
About how many more people live in China than in the United States? Express your answer using scientific notation. Round the first factor to the nearest hundredth.

×­ 10
people