Question

The distance between the Earth and the moon is approximately 384000 km. Express this distance in metres in exponential notation.

Answer 1

Given the distance between the earth and the moon is $384000\text{km}$

Representing in exponential notation,

$=384000\times 1000\text{m}$ $[\because 1\text{km}=1000\text{m}]$

$=384\times {10}^6\text{m}$

$=3.84\times {10}^8\text{m}$