Italian Maths Test

An Italian workman wants a job, but the foreman won't hire him
until he passes a little math test.

'Here's your first question,' the foreman said. 'Without using
numbers, represent the number 9.'

'Withouta numbers?' the Italian says, 'Datsa easy.' and he
proceeds to draw three trees.

'What's this?' the boss asks.
'Ave you gota no brain? Tree and tree and tree makes a nine,'
says the Italian.

'Fair enough,' says the boss. 'Here's your second question. Use
the same rules, but this time the number is 99.'

The Italian stares into space for a while, then picks up the
picture that he has just drawn and makes a smudge on each tree . 'Ere
you go.'

The boss scratches his head and says, 'How on earth do you get
that to represent 99?'
'Eacha of da trees is a dirty now. So, it's dirty tree, and
dirty tree, and dirty tree. Datsa a 99.'

The boss is getting worried that he's going to actually have to
hire this Italian, so he says, 'All right, last question. Same rules
again, but represent the number 100.'

The Italian stares into space some more, then he picks up the
picture again and makes a little mark at the base of each tree and
says, 'Ere you go. One hundred.'

The boss looks at the attempt. 'You must be nuts if you think
that represents a hundred!'
(You're going to love this one!!!)

The Italian leans forward and points to the marks at the base of
each tree and says, 'A little doga come along and shita by eacha tree.
So now you gota dirty tree and a turd, dirty tree and a turd, and
dirty tree and a turd, data makea one hundred.
'So, whenna I start?'