Ear Marking
Livestock
Looking face on
Right Ear.......Head.......Left Ear
- A NOTCH in bottom of LEFT ear equals 1; two notches equal 2
- A NOTCH in top of LEFT ear equals 3; two notches, 6; three notches, 9
- A NOTCH in bottom or RIGHT ear equals 10; two notches equal 20
- A NOTCH in top of RIGHT ear equals 30; two notches, 60; three notches, 90
- A NOTCH in end of LEFT ear equals 100
- A NOTCH in end of RIGHT ear equals 200
- A HOLE on end of LEFT ear equals 400
- A HOLE in end of RIGHT ear equals 500
- A HOLE in bottom of LEFT ear equals 1,000
An example of the "old math".