(developer of cow-culus)
Q: What quantity is represented by this?
A: 9, tree +tree +tree
Q: A dust storm blows through, now how much do we have?
A: 99, dirty tree, dirty tree, dirty tree
Q: Some birds go flying by and leave their droppings, one per tree; how many is that?
A: 100, dirty tree and a turd +dirty tree and a turd +dirty tree and a turd