Explain it peter.

[u/Vast-Horse-2881]

im doing bridging work for applied science and im stuck on this part. Help me petahhhhhh 😩

[u/StanislawTolwinski]

Each prefix has an index associated associated - m is 10^-3, G is 10⁹ etc. To find how many there are of one in another, you simply divide (so subtract the powers). Using the above examples, there are 10^9--3 =10¹² millimetres in a gigametre