Question

The diameter of a certain star is about 6.8 * 10^6 km Express this distance in standard form.
The​ star's diameter is about
how many km.

Answer 1

6.8*10^6 km = 6.8*10*10^5 km   =   68*   100,000 km = 6,800,000 km
..........................       (10^5 means one folowed by five zeroes)

wich is 6 million and 8 hundred thousand clicks