Here in the UK Shepherds tended to place more importance on sheep than pretty much everything else, such as shool and church (in fact, when a shepherd died, they would pin a bit of wool to thier burial suit so that God would know why they never went to church).
As Such, many never learned numbers. But in shepherding, its pretty important to make you you haven't lost any sheep. So the ancient shepherds in Northern england and southern scotland used this rhyme called Yan Tan Tethera. There are quite a few variations based in local dialect, this one is from Cumbria where my Grandfather (who taught it to me) grew up.
1 Yan
2 Tahn
3 Tethera
4 Methera
5 Pimp
6 Sethera
7 Lethera
8 Hovera
9 Dovera
10 Dick
11 Yan-a-Dick
12 Tahn-a-Dick
13 Tethera-Dick
14 Methera - Dick
15 Bumfit
16 Yan-a-Bumfit
17 Tahn-a-Bumfit
18 Tethera-Bumfit
19 Methera-Bumfit
20 Jiggot
I think its rather lovely, hance why I shared it here.