as long as you have both halves and the serial numbers match and are intact you can exchange it without a problem.
The plural for half is halves not halfs.
3 quarters are not greater than 2 halfs, as two halfs equal a whole. :)
2 million halfs make 1 million.
halves.
1.0
There are: 6
one
four quarters
halves
There are 6
it means halfs
3