What is the best title for this list? used fire to cook
used animal skins as clothing
made weapons such as spears
made simple tools such as digging sticks

Using only this chart, which step would you take first to compare the standard of living in these countries? add the gdp numbers for the countries to get a total. divide each gdp number by its country's population. subtract each population number from its country's gdp. multiply the population number by the gdp for each country.