The moon is 238,900 miles from the Earth. Estimate the distance as the product of a single digit number times a power of 10.
Write the number 0.0000000000276 as the product of a single number times a power of 10.
The moon is approximately 2.4 x 10^5 miles from Earth.
0.0000000000276 can be written as 2.76 x 10^-11.