Module 1: The International System of Units (SI)
Mastering Concepts
Start by converting the measurements to kilometres.
The greatest distance to the sun is 1.52 × 1011 m.
Since 1 km = 1000 m,
The shortest distance to the sun is 1.46 × 1011 m.
Since 1 km = 1000 m,
The difference in distance is 
.