For example, World Bank data gives that the GDP of China in 2017 was 12237700479375 USDwhich is 1.2 x 1013 USD and the GDP of Australia in 2017 was 1323421072479 USD, which is 1.3 x 1012 . Writing these numbers in scientific notation allows you to quickly see the similarities and differences between the economic factors.
GDC
When using your GDC to answer questions involving scientific notation, it is important that you recognize and interpret calculator notation for these numbers, which is aEk, but that in our written tests you use