Question

The Earth’s diameter through the equator is about 8000 miles. What is the Earth’s estimated diameter written as a whole number multiplied by a power of ten?

Answer 1

it would be 8^3, or 8 to the 3rd power because its in the thousandths place

Answer 2

Start with 8000.00 miles.  Move the decimal point three places to the left and then mult. the result by 10^3:

8.0*10^3 miles